HELMETบลูทูธ หมวกกันน็อค Bluetooth5.0+EDR BT18บลูทู ธ หูฟังไมโครโฟนหมวกกันน็อคจักรยานหูฟังแฮนด์ฟรีลำโพงโทรควบคุม BT18

https://youtu.be/9YQW30ra_-o วิธีติดตั้ง วิดีโอ Wirelessly listen to music with integrated technology. Fashion design, let music surrounding your life at any time. Hands-free function, truly free your hand. Set-in rechargeable Li-ion battery, long standby, and working time. Support power display on iPhone, easy to know when the will to be charged. DIY design, available to be detachable when you want. Sound reminder function, easy to set the device according to sound remind. Features: Wirelessly listen to music with integrated technology. Fashion design, let music surrounding your life at any time. Hands-free function, truly free your hand. Set-in rechargeable Li-ion battery, long standby, and working time. Support power display on iPhone, easy to know when the will to be charged. DIY design, available to be detachable when you want. Sound reminder function, easy to set the device according to sound remind. Specification: Frequency: 2.402GHz-2.480GHz Range: 30-40 meters(depending on device) Transmission distance of Microphone: no more than 1 meter Li-ion battery: 3.7V/1000mA Playback time: no more than 4hrs Charging voltage: 5V Charging time: less than 1 hrs Standby time: less than 240 hrs Connection name: BT-18 Package Included: 1 x Headset, 1 x Charging Cable, 1 x Fixed folder, 1 x Mic and trumpets, 1 x Velcro inside the helme