YD08-2 Stereo Noise Cancelling Sports Wireless Bluetooth Neck-mounted Earphone(Black)

1. Non-inductive wearing, long battery life, strong bass, high-definition calls2. Bio-diaphragm, 9D stereo surround mid-bass, waterproof and sweatproof3. Support voice prompt, CVC6.0 noise reduction4. Magnetic absorption, portable design, light and comfortable to wear, not easy to lose5. Ergonomic design, firm wearing, comfortable in-ear6. Bluetooth 5.0 chip, stable transmission, simple connection, smooth calls and songs7. Memory soft silicone material, can be bent at will, comfortable and skin-friendly, resistant to dirt and not easy to wear8. Two connection methods of Bluetooth + card9. Audio and video synchronization, zero delay10. Transmission distance: 10 meters11. Function: call function, support music12. Charging time: about 2-3 hours13. Listening to songs and talking: about 38 hours14. Power mode: USB charging / built-in lithium battery15. Battery capacity: 280mAh16. How to use: Neck hanging17. Input voltage: 5V18. Input current: 200mA19. Input power: 5W20. Frequency response: 20Hz-20KHz21. Microphone sensitivity: -42dB22. Speaker sensitivity: 115dB23. Speaker impedance: 32 ohms