1The speaker is ergonomically designed to avoid excessive pressure on the ear canal. 2Premium channel chip, independent mature algorithm, more safe and effective to improve the conversion rate, stable discharge voltage. 3Stable and clear communication. 4Mini body, light weight and easy to carry. 51-3km communication distance. Provide the enough convenience for your long distance communication. Condition: 100% Item Type: Walkie TalkieMaterial: ABS Weight: approx. 32gSize: approx. 65x26x14mm/2.6x1x0.6inchFrequency range: 400-480Power: 0.5WChannel: 16 channelVoltage: 3.7 VBattery capacity: 2000 mahResistance of antenna: 501Communication distance: 1-3 km Package List: 2 x Walkie Talkie2 x Data Line2 x Hanging Strap1 x Manual