Product Features: [wireless distance] configuration of K-type adapter, as long as you insert the walkie-talkie, turn on the switch, it can be used, traditional wired headphones, 10m wireless distance. [wireless link] Bluetooth link, support multi-point link, can be used alone, can also be connected to two mobile phones at the same time, or link a mobile phone, a walkie-talkie with Bluetooth function. [TYPE-C charging port] large-capacity battery, support a variety of charging methods, such as: direct charge/charging treasure/car charge/computer charge and so on. [high fidelity sound quality] clear to the ear, restore communication sound quality, just like a face-to-face call. [K-type interface] suitable for most of the market walkie-talkie equipment, such as: 888S/ series, K-type interface equipment can be used. Specifications: Charging interface: TYPE-C Effective distance: 10M Applicable model: General K interface intercom Material: plastic colour: black Package Contents: 1 x