ITEM NAME:Bluetooth 5.0 Headset Mini Wireless Earphones Sports Stereo Earphone with M U3U1 Bluetooth 5.0 Headset Mini Wireless Earphones Sports Stereo Earphone with M U3U1 Speaker specifications: 8 copper ring Speaker impedance: 16 ohms Speaker frequency response: 20Hz ~ 20KHz Speaker rated power: 3mw Speaker 1k sensitivity: 98db Standby time: 120h Bluetooth version: 5.0+edr Transmission distance (m): 7-10m Power consumption: 13-15 mA Input power: 93mW USB headset charging time: 1h Headphone battery capacity: 50 mAh Battery voltage: 32-4.2v Lithium battery energy content (watt hours): 0.203wh Material:ABS colour:black Package Contents: 2 * earphone 1 * charger 1 * instruction manual
