Fangrui Product Details 1. Js911 Ows Ear-mounted Dual-mic Call Noise Reduction Led Digital Display Bluetooth Earphones 2. Features: 3. Skin-friendly Silicone, Elastic Silk, Light And Stable, Comfortable To Wear For A Long Time 4. Non-in-the-ear Design, Using Directional Technology To Accurately Transmit Sound Into The Ear Canal 5. 16.2mm Super Large Dynamic Unit Restores Full Sound Quality 6. Dual Microphone Noise Reduction For Clear Calls 7. Bluetooth 5.42, Synchronous Transmission Of Videos And Games, Stable And Without Delay, No Lag 8. Directional Hifi Sound Transmission Technology, Music Is Accurately Transmitted To The Eardrums, The Melody Has Direction, And The Enjoyment Is More Beautiful. 9. Sensing Native Dual-unit, Sound-absorbing Inner Cavity Barrier Design, Combined With The Fourth Generation (heycute-acavity) Acoustic Cavity, To Restore The Natural Original Sound Of The Scene 10. Product Parameters: 11. Chip: Ab5616c 12. Bluetooth Version: 5.42 13. Communication Distance: About 10m 14. Signal-to-noise Ratio: 84-90db 15. Impedance: 32 Ohms X 2 16. Speaker Size: 8mm 17. Unlimited Carrier Frequency: 2402mhz-2480mhz 18. Wireless Frequency Response Range: 20hz-20khz 19. Charging Interface: Type-c 20. Battery Capacity: 70mah Earphones, 400mah Charging Box 21. Charging Time: About 2 Hours For Earphones, About 2 Hours For Charging Case 22. Standby Time: 120 Hours For Headphones, 4 Months For Charging Case 23. Headphone Playback Time: About 8 Hours 24. Headset Talk Time: About 7 Hours 25. Supported Protocols: Hfphspa2dpavrcp 26. Audio Decoding: Aacsbcmp3 27. Waterproof Level: Ipx7 28. Main Functions: Music Playpause, Volume Increase And Decrease, Up And Down Song Switching, Incoming Call Reminder, Call Noise Reduction, Three-party Call Voice Assistant Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.