BT Bluetooth V4.1 In-ear Sport Earphones Headphones -BLACK199406401
Unique in-ear design guarantees earphones closely fitting to ears and will not fall off when you are working out. Meanwhile, audio performance has improved greatly.
- Waterproof and sweat resistant, no matter sweating in gym or running in rainy day, it will be with you.
- Noise reduction technology, isolate noise and let you immerse yourself in the music.
- Wireless earphones, free from wired.
- With drive-by-wire design, all in your hands.
Bluetooth transmission distance: 10m
Battery: 55mAh Li-ion battery
Talking time: 3.5h
Music time: 3h
Charging time: 1 - 2h
Impedance: 32 ohm
Frequency: 20 - 20KHz
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