Walkie Talkie Model: Baofeng BF-888S;16 channel; Each radio has a earpiece Frequency Range: 400-470MHz; Low battery alarm; 50 CTCSS/105 CDCSS 1500mAh Li-ion battery; Low Voltage Alert; Intelligent Charging Power-saving features to extend battery life; CTCSS/DCS function/Scanning function/Emergency alarm function Range up to 3 miles (5 km) depending on environment and terrain