Operation Voltage:7.4v; Model:UV-82; What's in the box: Battery, Clip Cord, Antenna, Charger Adapter; Capacity:1800m Ah; Working Temperature (°C):0-50℃ (-20 to 60); Frequency range (Mhz):136-174 M Hz, 400-470 M Hz; Walkie Talkie Type: Anolog, Handheld; Maximum Range:5KM-10KM; Channel Capacity:128CH; Frenquency Stability:±2.5ppm (2.5ppm); Antenna Impendance:50; Brand:BAOFENG; Net Weight:0.133; Listing Date:07/18/2014; Base Categories: Intercoms, Communications, Electronics; Special selected products:COD