Motorola RLN5705A: Motorola RLN5705: Motorola Original Minitor V amplified charger with VHF antenna for Minitor V pager Charges battery pack while in pager, as well as spare. Also has 2.5 watt audio amplifier for louder output in high noise environments. Includes a VHF whip antenna. Compatible with only the VHF (143-175 MHz) Minitor V Motorola Original RLN5705A: VHF frequency Amplifier Charger for Minitor V Pager. Has relay connection in the back of the unit. Fits: Minitor V NOTE: To avoid confusion, for ordering purposes, the ALPHA letter after the part number is not listed.