* backlit digital watch * 1.5 mile range to communicate over great distances * includes 22 channels: Channels 1-14 frs and channels 15-22 gmrs! * operates with all frs radios. * vox(voiceactivated) operation. * backlit LCD display so it's easy to read,. Even at night! * call alert signal button for urgent calls! CTC function. * channel scan with lock feature * electronic volume control or headset/earbud compatible * 500mw tx power output for a stronger, clearer signal! use replaceable rechargeable battery 3.7v li-ion and AC battery charger(bothincluded)