Features: Bluetooth V5.0 technology : With Bluetooth V5.0 technology, it brings you stable and strong wireless signal transmission. Simple Operation: The motorcycle helmet wireless headset can be mounted inside the helmet. It can be connected with your mobile phone via Bluetooth. You can answer / reject call, play / pause music, control next / previous song, increase / decrease the volume. Strong Compatibility: Compatible with all Bluetooth-enabled mobile devices. Voice Prompt & Wireless Bluetooth Call: Voice Prompt function makes you know the working status of the headset. The music would be suspended when there is a coming call and the music will be resumed automatically after the call finish. Wireless Bluetooth call is convenient and safe when riding a motorcycle. Long Working Time: With built-in 180 mAh Polymer Battery, it offers 8 hours of working time. Standby time is about 160 hours. Specifications: Bluetooth Version: V5.0 Frequency Range: 2.402GHz-2.480GHz Transmission Distance: 10M (Actual transmission distance depends on environmental factors and mobile phone Bluetooth devices.) MIC Distance: ≤ 1 meter Lithium Battery: 3.7V / 180mA Charging Time: 1 hour Standby Time: About 160 hours Continuous Working Hours: About 8 hours Package Weight: 156g Package List: 1 x Helmet Bluetooth Headset 1 x Charging Cable 1 x User Manual .