USAMS YH21 new headphones design audiophile and microphone BT5.3 safety headphones earphone

USAMS-YH21 Wireless Headphone–
YH Series BT5.3 500mAh
Battery 70hrs listening
Material: ABS+PC BT Version: 5.3 Connection Range: ≤10m Speaker Diameter: 40mm Speaker Sensitivity: 108±3dB/1Khz 0.179V Impedance：32Ω±15%
Frequency Response: 20-20Khz
SNR: ≥80dB Weight: about 223g
Battery Capacity: 500mAh
Playing Time: about 70 hours
Calling Time: about 60 hours
Charging Time: about 3 hours
Charging Power: 5V/0.5A
Size: 167*186*80mm
Compatibility: For digital devices with BT function Including: Headphone*1, Type-C charging cable*1, User manual*1 Features: ① Breathable leather material, comfortable to wear. ② Immersive stereo sound effect, HD microphone calls. ③ Upgraded BT 5.3 chip, stable connection. ④ 70 hours listening time, ultra-long battery life.