Convenient to use: Lightweight. Portable with ergonomic design for a firm grip and a belt clip. Powered by 4 AAA batteries for each unit. The product does not contain batteries. 3km long door: Strong signal supports communication between neighborhoods. 8 channels allow one or more radio walkie-talkies to communicate simultaneously. Generous door up to 3km (MAX 3km in open field) VOX function: The internal Vox function facilitates automatic transmission. allows transmissions to be sent and the signal to be easily transmitted without pressing the ''push to talk'' button. Safety. Day and night: The rear clear LCD screen is convenient for night use. and the built-in flashlight can be used as an emergency light. for nighttime adventures. emerging situations or gloomy working environments. Best gift: Perfect gifts for. your friends or family members. Great festival gifts. birthday gift or visiting gift. and used for all outdoor activities ColorBlue Packing List: 2 x children's walkie-talkies (without battery) ModelB631TF3764HU98430