HZ-10 Bluetooth 4.2 helmets with hands-free function, FM radio and Micro SD card port

Wireless Bluetooth helmets with Bluetooth 4.2: • Wireless Bluetooth 4.2 connection of up to 10 meters. High sound quality with low battery consumption. • Battery life of up to 7 hours. Even if you run out of battery, you can continue using them by connecting a minijack auxiliary cable (3.5mm jack). • Built-in FM radio. • Hands-free function through the built-in microphone. • Includes control buttons that allow you to change songs, increase the volume, pause, and more. Bluetooth helmets: V4.2 Bluetooth range (unobstructed): 10 meters Battery: rechargeable, lithium polymer. Charging time: 3-4 hours approx. Usage time: 7 hours Frequency: 2.40 ghz - 2.48 ghz PVC Metal Alloy