Fangrui Product Details 1. T&g Tg13 Tws In-ear Stereo Touch Wireless Bluetooth Earphone 2. Bluetooth 5.0 Technology, Ultra-low Latency, More Stable Connection 3. Intelligent Noise Reduction And Lossless Dual Earphones For High-definition Calls 4. Graphene Diaphragm, Hifi Sound Effects, Giving You An Immersive Music Experience 5. Pick Up Automatic Connection And Pairing, Simple Operation 6. One Key Control, Multiple Functions Can Be Activated 7. Voice Assistant, Free Control 8. Use With Charging Box, Long-lasting Battery Life 9. Fully Compatible With Bluetooth-enabled Devices 10. Ergonomic In-ear Design, Comfortable To Wear And Not Easy To Fall 11. Specifications: 12. Bluetooth Version: V5.0 13. Radio Frequency Transmission: Class 2 14. Spread Range: 2.402ghz-2.480ghz 15. Transmission Distance: 10 M 16. Sensitivity: -42db 17. Frequency: 20 Hz-20khz 18. Charging Time: About 1-1.5 Hours 19. Standby Time: About 60 Hours 20. Music Time: About 2-3 Hours 21. Headphone Battery Capacity: 30mah 22. Charging Box Capacity: 250mah 23. Single Machine Size: 57.5x48x28mm 24. Packing List: 25. Charging Compartment X1 26. Earphone X2 27. Charging Cable X1 28. Manual X1