Brand Boiston Model BST-320 Color Black Quantity 1 Frequency Range 400.00~470.00MHz Channel 16 Frequency Stability +/- 2.5 ppm Output Power 4 W Working Voltage 3.7 V Working Distance 1000~3000 m Battery Capacity 1500 mAh Features PC Program; Flashlight Function; 50 CTCSS and 210 DCS Codes; Squelch Level; Battery Saving; VOX Voice Operated; Transmitting Function; Busy Channel Lock; Low Battery Warning; Over Voltage or Low Voltage Protection; Channel Monitor; TOT (Time-out Timer); Scrambling Function; Noise Reduction; Scanning Function Packing List 1 x Walkie Talkie 1 x Antenna (11cm) 1 x Strap (22cm) 1 x AC power charger adapter (US Plug Input: AC 110~240V / 50Hz; Output: DC 5V 500mAh 100cm-cable) 1 x Battery 1 x Belt clip 1 x Chinese user manual