Bluetooth Helmet Headset, Ultra-Thin Motorcycle Helmet Speakers, Automatically Answer Incoming Calls, Volume Control, Dial Control, High Sound Quality Helmet Bluetooth System, Black, (YOVDA-M5)

Description Main Specifications: BT chipset: 5.0 Frequency: 2.402GHz-2.480GHz Range: 20-30 meters Lithium-ion battery: 3.7V 250mA Charging voltage: 5V Charging time: <1.5 hours Standby time: about 160 hours Packing List: Headphone*1 Charging cable*1 Manual*1