Retevis RT-B6 2 Way Radio Amateur Radio Transceiver VHF/UHF 136-174/ 400-480MHz 99CH DCS/CTCSS DTMF (10 Pack) and 2 Pin Covert Air Acoustic Earpiece (10 Pack) Frequency Range: 400-470;MHz/136-174MHz; 99 channel; 104-DCS, 50-CTCSS Standby time: 110 h; 2000mAh Li-ion battery; FM radio: 65-108MHz; LED Flashlight Inductivelyloadedantenna: Stubborn and boost the radio distance PTT-ID function could let you know who are speaking to you ANI: Automatic number identification of the radio, only can beset by PC software