EL-A2 Gaming Ambient Light Folding Wireless Bluetooth Headset 1. High fidelity quality, pluggable microphone, protein leather earmuffs, all-in-ear noise reduction, cool lights, long battery life 2. Hand-painted graffiti contrast color style design, simple lines 3. Play the game freely, no delay, clear hearing 4. Multi-angle foldable adjustment 5. Colorful atmosphere breathing lights on both sides, fine workmanship 6. Multiple play modes: Bluetooth, TF card, AUX, game mode 7. Sturdy headband retractable stainless steel, flexible adjustment, suitable for all heads 8. Sturdy structure, foldable design, easy to carry 9. Wearing sponge protection for a long time without getting tired 10. Battery capacity: 400mah 11. Talkmusic time: 45 hours 12. Battery life: 35 hours 13. Charging time: 2.5 hours 14. Function: call function, voice control, support music, multi-point connection 15. Frequency response: 20-20000Hz 16. Channel: Stereo 17. How to use: head-mounted 18. Transmission range: 10 meters 19. Charging voltage: 5V 20. Bluetooth protocol: 5.1 21. Charging current: 300mA 22. Standby current: 3.9mA 23. Standby time: 400 hours 24. Bluetooth call working current: 23mA 25. Power supply voltage: 3-4.2V 26. Sensitivity: -42dB 27. Speaker: 40MM 28. Weight: about 260g