1. Ergonomic design, no pain to wear for a long time
2. Bilateral stereo, 40mmHD driver unit
3. Breathable soft earmuffs, comfortable to wear
4. Sound insulation and noise reduction, adjustable head beam, clearer calls
5. Bluetooth 5.0 chip, fast connection, stable transmission, low power consumption
6. Built-in high-definition microphone with noise reduction technology, answer calls with clear sound
7. Impedance: 32 ohms
8. Sound principle: moving coil
9. How to use: head-mounted
10. Plug diameter: 3.5mm
11. Frequency response: 20-20000Hz
12. Charging time: about 2 hours
13. Standby time: about 200 hours
14. Playing time: about 10 hours
15. Battery capacity: about 500mah
16. Power supply mode: USB charging / built-in lithium battery
17. Rated current: 1A
18. Charging voltage: DC 5V
19. Rated power: 5W
20. Packing list: earphone + charging cable + 3.5mm audio cable + user manual
21. Weight: about 350g