REMAX RB-S33 Bone Conduction Wireless 5.0 Sports Earphone(Black)

1. Wireless 5.0, low power, 10-15m stable signal. 2. Advanced bone conduction, more powerful. 3. IPX5 waterproof, enjoy your workout at will. 4. Titanium alloy memory steel wire frame, 360-degree free bending, comfortable and secure fitting. 5. Only 27g in weight, light and comfortable 6. Speaker power: 0.5W 7. Built-in 230mAh battery 8. Charging time: 2h 9. Talking time: 5-6h 10. Standby time: 220h 11. Support protocol: A2DP v1.3/AVRCP v1.6/HFP v1.7/HID v1.1/AVCTP v1.4/AVDTP v1.3/SPP v1.2