Product: Portable Bluetooth walkie-talkie Concept: This product can be connected to a mobile phone through Bluetooth. Multiple devices can realize networking communication under non-network conditions such as mountainous areas. The hidden sliding hook makes the shape complete, and at the same time, it is hung on the backpack when in use; The telescopic antenna is hidden in the right side shape, and can slide out if the signal is poor. Cooperative company: Leapli-nk