Original Lenovo X3 Magnetic In-Ear Wireless Sports Bluetooth 5.0 Earphone(Red)

1. Bluetooth working distance: 15m
2. Speaker size: 10mm
3. Speaker impedance: 32ohm
4. Speaker frequency response: 20Hz-20KHz
5. Battery charging current: 110mA
6. Battery capacity: 80mAh
7. Battery charging time: 2h
8. Working voltage: 3.3V-4.2V
9. Headphone size: 23.6x16.5x26.7mm
10. Earphone weight: 21.2g