Specifications Frequency FRS US Version PMR446 EU Version Channels 16Power 2W 0 5WBattery 1000mAh Li ionWorking Voltage 3 7V DCWork Time Up to 19 hoursStandby Time Up to 60 hoursWeight 116g 0 26lbDimensions 128 x 52 x 21 mm 5 03 x 2 04 x 0 82 in H W D Features 1 16 Channels for Wide Range Communication Retevis H777 operates on 16 channels making it versatile for both US and EU frequencies FRS PMR446 The ability to switch between channels ensures clear communication eliminating interference in busy environments 2 Extended Work and Standby Time Equipped with a 1000mAh Li ion battery the radio provides up to 19 hours of continuous working time and 60 hours of standby time This long battery life is ideal for demanding work shift ensuring constant communication 3 Hands Free Operation and VOXs Function The walkie talkie supports VOXs Voice Activated Transmission for hands free operation making it convenient for multi tasking It also comes with a belt clip allowing users to keep their hands free during their tasks 4 Enhanced Safety Features Retevis H777 includes an emergency alert function and LED flashlight providing added security for users in critical situations The low battery audible alert ensures you are always aware when the device needs recharging 5 User Friendly and Portable Design The compact and lightweight design 116g makes the radio easy to carry around Features like channel lock squelch and voice prompt enhance usability