M520 Ear-mounted Stereo Bone Conduction Sports Bluetooth Earphone(Black)

1. Bluetooth version: 5.2+EDR2. Transmission distance: about 10 meters3. Talk time: about 48 hours4. Listening time: about 26 hours5. Battery capacity: 150mAh6. Accessories: earphone x1, charging cable x1, manual x17. Wireless frequency: 2.4GHZ8. Support protocol: A2DP1.3/HFP1.6/HSP1.2/AVRCP1.6/D11.39. Charging voltage/current: 5V/1A10. Power: 5W11. Charging time: about 2 hours12. Speaker/impedance: 8mm/32 ohm13. Microphone sensitivity: -42dB14. Support functions: Chinese and English switching/caller ID/voice assistant call/los battery display/two earphones of any color can be combined into TWS binaural function15. Size: about 7.7x4x0.9 cm16. Weight: about 36 gramsFeatures:1. Biological diaphragm, the sound quality is transparent and powerful, the audio that restores the sound quality is bright, the middle frequency is full, and the low frequency is thick and flexible2. IPX5 waterproof design, effectively prevent rain and sweat, easy to clean material3. Inward adjustment can clamp the ears, the earphones will not fall when bending down, and