M7 Wireless Headphone Bluetooth-compatible 5.0 Helmet Headset Stereo Sound Waterproof Auto Answer Earphone with FM Radio

• Auto Answer: There is no need to reach out and hold the mobile phone for incoming calls, which is safer and more convenient
• Big Button Operation: Simple function control, more convenient to operate
• No fear of Wind, Snow, and Dust: Advanced waterproof technology, no fear of wind and rain, super protection, durable
• Comes with FM feature, not only a headset but also as an FM radio, you can real-time control of road conditions
• Long Battery Life: The headset built-in 500mAh large capacity Lithium battery, no need to charge the headset frequently, it can satisfy your one day's use

Specifications:

• BT version: 5.0
• Frequency range: 2.402GHz~2.480GHz
• BT distance: 20~30m (depending on the mobile phone)
• Lithium battery capacity: 3.7V/500mAh
• Charging voltage: 5V
• Charging time: about 2 hours
• Standby time: about 360 hours