[Rechargeable Walkie Talkie] Walkie Talkie is equipped with 1200mAh rechargeable lithium-ion battery which allows you to use it daily at low cost. The walkie-talkie can have 3-4 days standby time after fully charged quickly by the USB type C charging cable. And you can charge your walkie-talkie in various ways, for example, via power bank, power car charger, 5V USB mains charger, etc. [Security] This adult walkie talkie features 16 channels and 121 PINs. Its speakers can only be activated by signals from talkies transmitting on the same channel with an identical PIN. It allows you to communicate in an easy and free way with all other license-free devices on the market. [Full Features] This walkie talkie with sturdy material can provide very useful features, such as VOX function ( automatic voice triggering), automatic channel scan, automatic channel memory, power saving function, low battery warning, keypad lockout and busy channel lockout, automatic squelch, etc. [Long Range Walkie Talkie] This walkie talkie provides a range of up to 25km when communicating between two mountain sides, and up to 2km when you are in the building. The presence of obstacles, the way of holding the device, the frequency and the climatic conditions can influence the range of the signal. It is recommended that you hold the walkie-talkie vertically and use the device at a height for the best experience. [Easy to Use] Walkie-talkies are compact and lightweight with a large backlit LCD screen, and can be easily used by children, adults and the elderly. It will also be suitable for a variety of outdoor and indoor activities, such as cycling, camping, hiking and adventure play.