Two Way Radio Headsets & Boom Microphones

Motorola 15012094001, 15012094001, 1580376E32: The 15012094001 Motorola Muff Cover features Color Black, Single Pack of 1 and fits most heavy duty headsets. The 15012094001 has replaced 1580376E32

Motorola 3578010A01, 3578010A01: The 3578010A01 Motorola Windscreen is made of soft foam and used on boom microphones to block out wind. The 3578010A01 will work with many different headsets and radio models

Motorola 4204004K01, 4204004K01: The 4204004K01 Motorola Headset Replacement Headstrap features Velcro Adjustability and used with Behind the Head Style Headsets (Not For Over the Head Style Headsets)

Motorola 5080548E02, 5080548E02: The 5080548E02 Motorola Windscreen is for Headset Boom Microphone. 5080548E02 offers additional protection from wind and noisy background which is needed for consistent communication in noisy environments  

Motorola 75012068001, 75012068001, 7580376E34: The 75012068001 Motorola Ear Seals features Hygenic Foam, Pack of 2 and fits several Motorola Heavy Duty Headsets. The Motorola 75012068001 has replaced 7580376E34

Motorola AARMN4017A, AARMN4017A, AARMN4017: The AARMN4017A Motorola Headset features Ultra-Light, Over the Ear Style, Earbud Style Receiver, Streamline Boom Mic, Hands Free, Extended Wear Comfort  

Motorola AARMN4018B, AARMN4018B, AARMN4018A, AARMN4018: The AARMN4018B Motorola Headset features Over the Head Style, Light Weight, Adjustable Headband, Noise Cancelling Adjustable Boom Mic, In-Line Push-to-Talk (PTT), Hands Free, Extended Wear Comfort, Good for Moderate Noise Levels  

Motorola AARMN4031B, AARMN4031B, AARMN4031A, AARMN4031: PLEASE READ FULL DESCRIPTION...The AARMN4031B Motorola Headset features Light Weight, Over the Head Style, Adjustable Headband, Adjustable Boom Mic, Hands Free, Does Not Have in-line PTT, user Must Transmit Through Transmit Button on Radio, Good for Moderate Noise Levels  

Motorola AARMN4032A, AARMN4032A, AARMN4032: The AARMN4032A Motorola Headset features Medium Weight, Over the Head Style, Double-Muff Ear Cups, Adjustable Headband, Noise Cancelling, Adjustable Boom Mic, Hands Free, Noise Reduction Rating 24dB, Does Not Have in-line PTT, user Must Transmit Through Transmit Button on Radio, Good for Harsh Noisy Situations  

Motorola BDN6676D, BDN6676D, BDN6676: The BDN6676D Motorola Adapter features 3.5mm Threaded Accessory Port, Quick Disconnect Latch and Push to Talk (PTT)

Motorola BDN6773A, BDN6773A, BDN6773: The BDN6773A Motorola Headset features Adjustable Headset, Boom Mic, Single Ear Muff Speaker. To Transmit you must use the transmit button on the radio

Motorola ENMN4012A, ENMN4012A, ENMN4012: The ENMN4012A Motorola Headset features Ultra Light, Over the Ear and Behind the Head Style, Single Ear Muff, Flexible Boom Mic, Hands Free, In-Line Push-to-Talk (PTT), Connects Directly to the Radio

Motorola ENMN4016A, ENMN4016A, ENMN4016: The ENMN4016A Motorola Headset features Medium-Weight Headset, Behind the Head Style, Double-Muff Padded Ear Cups, Can be Worn with Most Safety Headgear, Adjustable Headstrap, Noise Cancelling Boom Mic, Adjustable Boom Mic, Hands Free, In-Line Push-to-Talk (PTT), Noise Reduction Rating 24dB, Connects Directly to the Radio

Motorola HLN9482A, HLN9482A, HLN9482: The HLN9482A Motorola Adapter Adapts Multi Pin GP350 audio accessories to work with GP300  

Motorola HLN9716D, HLN9716D, HLN9716, AAHLN9716B, AAHLN9716C: The HLN9716D Motorola Accessory Adapter features Mounting Screw, Rubber Gasket Seal, Multi Pin Connection, Converts to 2 Pin Use of Accessories  

Motorola HLN9900A, HLN9900A, HLN9900: The HLN9900A Motorola Audio Accessory Retainer features Screw Type Clamp that holds the Speaker Mic to the radio in order to prevent separation from the radio  

Motorola HMN9013B, HMN9013B, HMN9013A, HMN9013: The HMN9013B Motorola Headset features Adjustable head band for extended wear, Over the head design, Single Ear Speaker, Flexible Boom Mic. You must Transmit with PTT Button on the Radio

Motorola HMN9021A, HMN9021A, HMN9021: The HMN9021A Motorola Headset features Adjustable Head Band, Over the Head Design, Dual Ear Muff, Noise Reduction Rating 24dB, Flexible Boom Mic

Motorola HMN9022A, HMN9022A, HMN9022: The HMN9022A Motorola Headset features Behind the Head Style, Able to be worn with some Helmets, Dual Ear Muff, Noise Reduction Rating 24dB, No PTT user Must Utilize Transmit Button on the Radio, Adjustable Boom Mic

Motorola JMMN4066B, JMMN4066B, JMMN4066A, JMMN4066: The JMMN4066B Motorola Headset features Light Weight, High-Clarity, Boom Mic, Inline PTT, Single Muff, Hands-Free, discreet two-way communication, while maintaining the comfort necessary for extended-wear in moderate noise environments

Motorola NMN6246B, NMN6246B, NMN6246: The NMN6246B Motorola Headset features Ultra Light, High Clarity, Hands-Free, 3.5mm Threaded Plug, Single Ear Bud Style, Boom Mic, Inline PTT, Clothing Clip, Intrinsically Safe with Intrinsically Safe Radios, Discreet two-way communication, while maintaining the comfort necessary for extended-wear in moderate noise environments

Motorola NTN2575A, NTN2575A, NTN2575: The NTN2575A Motorola Earpiece features Bluetooth Technology, 9.5" cable, FM Approved Intrinsically Safe, Color Black, Over-the-ear Style, Proprietary Earpiece 2.5mm Connector. The NTN2575A was designed to give First Responders all day comfort  

Motorola PMLN4445A, PMLN4445A, PMLN4445: The PMLN4445A Motorola Headset features Ultra Lightweight, In-Line Push-to-Talk (PTT)/VOX Switch. The PTT/VOX switch allows the user to go hands free or use the PTT  

Motorola PMLN4455B, PMLN4455B, PMLN4455A, PMLN4455: The PMLN4455B Motorola Adapter features 3.5mm Threaded Accessory Port and Screw Connect for secure attachment

Motorola PMLN4585A, PMLN4585A, PMLN4585: The PMLN4585A Motorola Headset features Dual Temple Transducers, In-Line Push-to-Talk (PTT), Bone Conduction, Clothing Clip, Coiled Cord, Noise Cancelling Boom Mic

Motorola PMLN4653A, PMLN4653A, PMLN4653: The PMLN4653A Motorola Headset features D Style Earpiece, Over-the-Ear Style, Lightweight, Hands Free Operation, Flexible Boom Mic, In-Line PTT, VOX Switch

Motorla PMLN5003A, PMLN5003A, PMLN5003: The PMLN5003A Motorola Headset features Temple Transducer, Light and Comfortable, In-Line Push-to-Talk (PTT), In-Line Mic, Clothing Clip, 2 Prong Direct Connect, Bone Conduction to listen and doesn't cover your ear

Motorola PMLN5011A, PMLN5011A, PMLN5011: The PMLN5011A Motorola Headset features Temple Transducer, Light-Weight, Behind-the-Head Style, In-Line PTT, Boom Mic, Clothing Clip, Coiled Cord and Two Temple Transducer Receivers that converts audio into sound vibrations and transmits directly into the Inner Ear with Bone Conduction

Motorola PMLN5096A, PMLN5096A, PMLN5096: The PMLN5096A Motorola Earpiece features D Style, with Boom Mic and In-Line PTT, Clothing Clip

Motorola PMLN5101A, PMLN5101A, PMLN5101: The PMLN5101A Motorola Temple Transducer features IMPRES Technology, Inline PTT and Noise Cancelling Boom Mic  

The PMLN5275 is a replacement for the OEM Brand. Our PMLN5275 features Heavy Duty Behind the Head Style, 24dB Noise Reduction Rating, Ear Cup PTT, Noise Cancelling Boom Mic, Dual Ear Muff, Flexible Boom Mic, Great for Noisy Environments. The PMLN5275C Can be worn with or without Helmet. The PMLN5275C is also known as PMLN5275, PMLN5275B, PMLN5275A

Motorola PMLN5276B, PMLN5276B, PMLN5276A, PMLN5276: The PMLN5276B Motorola Headset features Heavy Duty Headset, Behind the Head Style, Double-Muff Padded Ear Cups, Adjustable Headstrap, Noise Cancelling, Adjustable Boom Mic, Ear Cup Push-to-Talk (PTT), Noise Reduction Rating 24dB

Our Brand Replacement PMLN5277 is a direct replacement for Motorola Headset. Our PMLN5277 features Heavy Duty Behind the Head Style, Double Ear Muff Speakers, Velcro Adjustable Head Strap, Can be Worn with Helmet, Adjustable Noise Cancelling Boom Mic, Noise Reduction Rating 24dB and Ear Cup PTT   12 Month Warranty  

Our Brand PMLN5278B is a direct replacement Motorola Headset. Our PMLN5278B features Heavy Duty, Double Muff, Adjustable Boom Mic, Noise Cancelling, Ear Cup PTT, 24dB Noise Reduction and can be worn with or without Helmet. Our PMLN5278 also come with replaceable cable

Motorola PMLN5320A, PMLN5320A, PMLN5320: The PMLN5320A Motorola Headset features Noise Conceling, Boom Mic, Noise Reduction Rating 24dB, Push To Talk (PTT) on Earcup, Able to wear with Hardhat, Direct Radio Connector

Motorola PMLN5731A, PMLN5731A, PMLN5731: The PMLN5731A Motorola Headset features Double Muff, Adjustable Boom Mic, Noise Canceling, Inline PTT, Direct Radio Connect, Quick Disconnect, Noise Reduction of 24dB and Over the Head Style

Motorola PMLN5792A, PMLN5792A, PMLN5792: The PMLN5792A Motorola Adapter features Wireless Bluetooth Adapter, Quick Disconnect, PTT Push to Talk, Blue LED Active Connection Status, Toggle Ability between Bluetooth & Radio, Provides Secure 128 bit encryption. The Toggle switch is critical in keeping radio transmition without interruption if the earpiece gets pulled from the ear

Motorola PMLN6088A, PMLN6088A, PMLN6088: The PMLN6088A Motorola Headset features Heavy Duty, Over-The-Head Style, 24dB Noise Reduction Rating, 25dB, Noise Cancelling Boom Mic, Dual Ear Muff, Flexible Boom Mic, Great for Noisy Environments and comes Nexus Male Plug  

Motorola PMLN6095A, PMLN6095A, PMLN6095: The PMLN6095A Motorola PTT Nexus Adapter features Coiled Cord, PTT, Nexus Female Connector to Headset Nexus Male, Swivel Clothing Clip and Large PTT easy to operate with gloves

Our Brand PMLN6760A replaces the Motorola Original Headset. The PMLN6760A features Double Muff, Adjustable Boom Mic, Noise Canceling, Inline PTT, Direct Radio Connect, Quick Disconnect, Noise Reduction of 24dB and Behind the Head Style

Motorola PMLN6765A, PMLN6765A, PMLN6765: The PMLN6765A Motorola Tactical Interface PTT/VOX features High performance interface enhanced by high speed DSP (Digital Signal Processor) which only detects the human voice and the ability to connect different headset equipment

Motorola PMLN6766A, PMLN6766A, PMLN6766: The PMLN6766A Motorola Tactical Boomless Temple Transducer features the ability to transmit and receive through the temple transducers, can be worn with or without helmet    

Motorola PMLN6767A, PMLN6767A, PMLN6767: The PMLN6767A Motorola Tactical Remote Body PTT features Large PTT, Clothing Clip, Ability to place the PTT in an easy to reach spot for easy communications during stressful or high activity situations, comes with Quick Disconnect and connects to the Interface Module    

Motorola PMLN6827A, PMLN6827A, PMLN6827: The PMLN6827A Motorola Tactical Interface PTT features the ability to connect different headset equipment  

Motorola PMLN6828A, PMLN6828A, PMLN6828: The PMLN6828A Motorola Tactical Throat Mic features the ability to transmit through the transducers, Receive through Acoustical Earpiece and comes with Quick Disconnect    

Motorola PMLN6829A, PMLN6829A, PMLN6829: The PMLN6829A Motorola Tactical Ear Mic features the ability to transmit through the earpiece with Bone Conduction Technology, Receive and Transmit through Earpiece and comes with Quick Disconnect    

Motorola PMLN6830A, PMLN6830A, PMLN6830: The PMLN6830A Motorola Tactical Remote Ring PTT features Long Cable for easy placement, Adjustable Ring fits most size fingers, Ability for easy communications during stressful or high activity situations where the user needs to keep hands on the task at hand, comes with Quick Disconnect and connects to the Interface Module. Great for First Aid/EMS

Motorola PMLN6833A, PMLN6833A, PMLN6833: The PMLN6833A Motorola Tactical Temple Transducer features the ability to transmit through Boom Mic and Receive through the Temple Transducers, Comes with Quick Disconnect and can be worn with or without helme  

Our Brand PMLN6852A replaces Motorola Original Radio Headset. Our PMLN6852 features Heavy Duty Behind the Head Style, 24dB Noise Reduction Rating, Replaceable Cable to Radio, Ear Cup PTT, Noise Cancelling Boom Mic, Dual Ear Muff, Flexible Boom Mic, Great for Noisy Environments. The PMLN6852A Can be worn with or without Helmet. The PMLN6852 A is also known as PMLN6852 12 Month Warranty

The PMLN6853A Motorola Radio Headset features Heavy Duty Behind the Head Style, 24dB Noise Reduction Rating, Ear Cup PTT, Noise Cancelling Boom Mic, Dual Ear Muff, Flexible Boom Mic, Great for Noisy Environments. The PMLN6853A Can be worn with or without Helmet. The PMLN6853A is Rated UL TIA for Intrinsically Safe Operations. Your radio must have the white dot to insure the proper coverage for Intrinsically Safe Operations

The PMLN6854 is a replacement for the Motorola Original Headset. Our PMLN6854 Headset features Noise Cancelling, Adjustable Head Band, Ear Cup Push-to-Talk (PTT), Heavy Duty Headset, Boom Mic, Noise Reduction rating of 24dB and Connects direct to Radio. Our headset is not VOX activated, but has great quality 12 Month Warranty

The PMLN7468A Motorola Headset features Adjustable Head Band, Over the Head Design, Dual Ear Muff, Noise Reduction Rating 24dB, Flexible Boom Mic. The PMLN7468A is replacing PMLN7468 and HMN9021

Motorola PMMN4001A, PMMN4001A, PMMN4001: The PMMN4001A Motorola Headset features Ultra Light Earpiece, Boom Mic, In-Line PTT and Direct Radio Connect

Motorola REX4648A, REX4648A, REX4648: The REX4648A Motorola Ear Pad & Windscreen Kit fits AARMN4018A, AARMN4018B, BDN6773A and RMN4016B Headsets and others  

Motorola RKN4094B, RKN4094B, RKN4094A, RKN4094: The RKN4094B Motorola Headset PTT Adapter Cable features Easy Interchangability, Coiled Cord, Large PTT for ease of use with gloves and Links between Headset and Radio with Quick Disconnect  

Motorola RKN4095B, RKN4095B, RKN4095A, RKN4095: The RKN4095B Motorola Headset PTT Adapter Cable features Easy Interchangability, Coiled Cord, Large PTT for ease of use with gloves and Links between Headset and Radio with Quick Disconnect  

Motorola RKN4097B, RKN4097B, RKN4097A, RKN4097: The RKN4097B Motorola Headset PTT Adapter Cable features Easy Interchangability, Coiled Cord, Large PTT for ease of use with gloves and Links between Headset and Radio with Quick Disconnect  

Motorola RLN4923B, RLN4923B, RLN4923A, RLN4923: The RLN4923B Motorola Earseals Includes 2 replacement earseals for Heavy Duty Headsets RMN4051B, RMN4052A and RMN4053A. RLN4923A  

Motorola RLN5411A, RLN5411A, RLN5411: The RLN5411A Motorola Headset features Sleek Comfort Design for extended wear, Behind-the-Head Design, Flexible Boom Mic, In-Line Push-to-Talk (PTT)

Motorola RLN5500A, RLN5500A, RLN5500: The RLN5500A Motorola Retainer Clip keeps audio accessories securely attached to radio  

Motorola RLN6477A, RLN6477A, RLN6477: The RLN6477A Motorola Radio Headset features Heavy Duty, Behind the Head Neckband Style, 24dB Noise Reduction Rating, Noise Cancelling Boom Mic, Dual Ear Muff, Flexible Boom Mic, Great for Noisy Environments. The RLN6477A Can be worn with or without Helmet and is suitable for Heavy Equipment, Airport, Construction, Manufacturing, Agriculture and Racing working environments  

Motorola RLN6490A, RLN6490A, RLN6490: The RLN6490A Motorola Headset features Bluetooth Connectivity, Behind-The-Head Neckband Style, Can be worn with Helmets, 23dB Protection, 22 Hour Operation on a 5/5/90 Use, Rated IP54, SENS Situational Awareness (Speech Enhanced Noise Suppression), Complete Wireless Operation, Ear Cup PTT or the ability to use Wireless PTT POD NNTN8127  

Motorola RLN6491A, RLN6491A, RLN6491: The RLN6491A Motorola Headset features Bluetooth Connectivity, Over-The-Head Headband Style, 23dB Protection, 22 Hour Operation on a 5/5/90 Use, Rated IP54, SENS Situational Awareness (Speech Enhanced Noise Suppression), Complete Wireless Operation, Ear Cup PTT  

Motorola RLN6492A, RLN6492A, RLN6492: The RLN6492A Motorola Head Band is for the RLN6491 Bluetooth Headset. The photo is for illustrations only, the headset is not included in this purchase  

Motorola RLN6493A, RLN6493A, RLN6493: The RLN6493A Motorola Replacement Neck Band is for the RLN6490A Bluetooth Headset. The headset photo shown is for illustration purposes only and not included in this purchase  

Motorola RLN6495A, RLN6495A, RLN6495: The RLN6495A Motorola Replacement Boom Mic is for the RLN6490 and RLN6491 Bluetooth Headsets  

Motorola RLN6496A, RLN6496A, RLN6496: The RLN6496A Motorola Replacement Cooling Pads for the RLN6490A and RLN6491A Bluetooth Headsets. This is a single piece if you need both sides please order quantity of 2 when checking out  

Motorola RLN6497A, RLN6497A, RLN6497: The RLN6497A Motorola  Headset Hygiene Kit is for the RLN6490A and RLN6491A Bluetooth Headsets  

Motorola RLN6498A, RLN6498A, RLN6498: The RLN6498A Motorola Universal Power Supply is for the RLN6490A and RLN6491A Bluetooth Headsets

Motorola RMN4016B, RMN4016B, RMN4016A, RMN4016: The RMN4016B Motorola Headset features Adjustable Head Band, Boom Mic, Single Ear Muff Speaker, In Line Push-to-Talk (PTT). Direct radio connect with 2 Prong Plug May fit and work Motorola 2 Prong Style Radios

Motorola RMN4048A, RMN4048A, RMN4048: The RMN4048A Motorola Headset features In-Line Push-to-Talk (PTT), Noise Cancelling, Coiled Cord, Binaural, Boom Mic, Direct Radio Connect, Intrinsically Safe with FM Radios and Behind-the-Head Style

Motorola RMN4049A, RMN4049A, RMN4049: The RMN4049A Motorola Headset features Temple Transducers, Boom Mic, In-Line PTT, Coiled Cord, Cothing Clip, Behind-the-Head Style, Intrinsically Safe with FM Radios and Lightweight

Motorola RMN4053B, RMN4053B, RMN4053A, RMN4053: The RMN4053B Motorola TacticalPro Hardhat Mount Headset features Dual Muff, On/Off Volume Control, Replaceable Ear Seals, 22dB, 3' Coiled Cord, Nexus Plug, 2 Mics on outside of earcups which helps reproduce ambient sound back into headset, Headset suppresses harmful sounds to safe levels, and low sounds are amplified up to 5 times their original level, but never more than 82dB

Motorola RMN4054B, RMN4054B, RMN4054: The RMN4054B Motorola Headset features Dual Ear Muff, Listen/Receive Only, Noise Reduction Rating 22dB, 3.5mm Right Angle NON-Threaded Plug and Made to mount to Hardhat  

Motorola RMN4055B, RMN4055B, RMN4055A, RMN4055: The RMN4055B Motorola Headset features Black Color, Over-The-Head Style, Listen Only, Coiled Cord, 3.5mm L Shape Plug, Replaceable Ear Seals, Non Threaded, Dual Muff and Rated 25dB. The RMN4055B is designed for high noise environments where users must hear information clearly, but seldom need to transmit. The RMN4055B is designed to plug into the Accessory Port located on the Speaker Mic or an Adapter mounted to the radio  

Motorola RMN4056B, RMN4056B, RMN4056: The RMN4056B Motorola Headset features Over-the-Head Style, Dual Ear Muff, Noise Reduction Rating 25dB, 3.5mm Threaded Jack, Great for Noisy Environments where the user needs to hear critical information with limited need to Transmit  

Motorola RMN5048B, RMN5048B, RMN5048A, RMN5048: The RMN5048B Motorola Headset features, Rugged Temple Transducer, In-Line Push-to-Talk (PTT), Noise Cancelling Boom Mic, Coiled Cord, Head Straps for Stability and Direct Radio Connect. Can be worn under helmet

Motorola RMN5049A, RMN5049A, RMN5049: The RMN5049A Motorola Headset features Rugged Temple Transducer, Boom Mic, Coiled Cord, Clothing Clip, Noise Cancelling, In-Line PTT, Direct Radio Connect and Adjustable Head Strap. Able to wear with or without helmet

Motorola RMN5058A, RMN5058A, RMN5058: The RMN5058A Motorola Light Weight Headset features Single Muff, Inline PTT, Adjustable Headband, Direct Radio Connection, Boom Mic, and Either Ear Operation  

Motorola RMN5114A, RMN5114A, RMN5114: The RMN5114A Motorola Headset features Temple Transducer, Light and Comfortable, In-Line Push-to-Talk (PTT), Transmits with Bone Conduction to Listen. Does Not Cover Your Ears

Motorola RMN5116A, RMN5116A, RMN5116: The RMN5116A Motorola Temple Transducer features Intrinsically Safe (FM), Boomless Operation, Bond Conduction Receiving and Transmitting, Allows Ears to be protected with hearing protection, can be worn with helmet and will not interfere with face masks. The microphone is embedded in the Temple Transducer which eliminates the need for a boom mic  

Motorola RMN5135A, RMN5135A, RMN5135: The RMN5135A Motorola Headset features Behind-The-Head Neckband Style, Dual Muff, On/Off Volume Control, Replaceable Ear Seals, 25dB, 3' Coiled Cord, Nexus Plug, 2 Mics on outside of earcups which helps reproduce ambient sound back into headset, Headset suppresses harmful sounds to safe levels, and low sounds are amplified up to 5 times their original level, but never more than 82dB  

Motorola RMN5138A, RMN5138A, RMN5138: The RMN5138A Motorola Radio Headset features Heavy Duty, Behind the Head Neckband Style, 24dB Noise Reduction Rating, Noise Cancelling Boom Mic, Dual Ear Muff, Flexible Boom Mic, Great for Noisy Environments. The RMN5138A Can be worn with or without Helmet and is suitable for Heavy Equipment, Airport, Construction, Manufacturing, Agriculture and Racing working environments  

The Replacement RMN5139A is a direct replacement for the Motorola Original Headset. The RMN5139A features Heavy Duty Hard Hat Mount Style, 21dB Noise Reduction Rating, Noise Cancelling Boom Mic, Dual Ear Muff, Flexible Boom Mic, Great for Noisy Environments and Ear Cup PTT. The RMN5139A is to be worn with Helmet/Hard Hat and is suitable for Heavy Equipment, Airport, Construction, Manufacturing, Agriculture and Racing working environments. The RMN5139A comes with Direct Radio Connector with no need for additional purchase for PTT Adapter and attaches to radio's below. Hard Hat is NOT Included. The RMN5139A is also known as RMN5139

The PMLN5808A comes with Mini PTT, Direct Radio Connect, Clothing Clip and Single Ear Muff

The PMLN6541A Headset comes with Dual Transducers, In Line Mic and PTT, Clothing Clip and Lightweight

Replacement RMN4051B, RMN4051B, RMN4051A, RMN4051: This is a replacement for the discontinued Motorola Original RMN4051B. The Replacement RMN4051Hardhat Mount Headset features Color Black, Noise Cancelling Boom Microphone, Noise Reduction Rating 21dB, Ideal for two-way communication in high-noise environments, Mounts easily to hardhats with slots, 3-foot Coiled Cord Radio Headset has connector OPTIONS, you need to place in the comment section which radio you are using so we can send you the correct cable wires.