Fangrui Product Details 1. Compatible Xiaomi Bluetooth 5.3 Open-ear Wireless Bluetooth Earbuds 2. Specifications 3. Bluetooth Version: Bt5.3 4. Bluetooth Codec: Aac Sbc Lhdc (supported By Some Models) 5. Working Distance: 10m (barrier-free Open Environment) 6. Protection Level: Ip54 (headphones) 7. Frequency Response Range: 20hz-40khz 8. Single Ear Size: 54.24 X 39.3 X 13.79mm 9. Single Ear Weight: 9.6g 10. Charging Box Size: 105.8 X 55.4 X 26.1mm 11. Charging Box Weight: 68.78g 12. Overall Machine Weight: 88g 13. Battery Capacity: Earphones: 60mah, Charging Box: 780mah 14. Charging Port: Type-c 15. Headphone Input: 5v 130ma 16. Charging Box Input: 5v 1a 17. Charging Box Output: 5v 260ma 18. Single Battery Life: 7.5 Hours 19. Battery Life With Charging Box: 38.5 Hours 20. Features 21. Made Of Skin-friendly Liquid Silicone Material, Soft And Comfortable To Wear. 22. The Earhook Is Embedded With Flexible Nickel-titanium Alloy Wire, Which Can Still Fit Well After Being Worn Many Times, Is Not Easy To Fall Off, And Has Long-term Stable Performance. 23. Using Dlc Diaphragm, The Sound Performance Is Precise And Moving, The Treble Is Rich In Detail, The Midrange Is Mellow And Full, The Bass Is Powerful And Graceful, And The Sound Is Beautiful And Captivating. 24. Intelligent Ai Call Noise Reduction, Dual-microphone Array Structure, And Beamforming Algorithm Can Accurately Pick Up Voice Content, Reduce Environmental Noise, And Present A Clearer Call Effect. 25. The Earphones Alone Have A Battery Life Of Up To 7.5 Hours, And When Used With The Charging Box, The Battery Life Can Reach 38.5 Hours. Super Long Battery Life, Long-lasting Listening. 26. Ip54 Dustproof And Waterproof, You Can Enjoy Music With Peace Of Mind While Exercising. 27. Package List 28. Pair Of Earbuds X 1 29. Charging Box X 1 30. Type-c Charging Cable X 1 31. Manual X 1