Xstars NB790 true wireless stereo earbuds HiFi sound quality BT5.0 waterproof earphone
Features:
  • Bluetooth Version: 5.1
  • Bluetooth distance: 10m
  • Speaker driver diameter:F16mm
  • Speaker driver sensitivity:110dB±3dB
  • Impedance:32Ω±15%
  • Frequency respond:20HZ-20KHZ
  • Charging cabin battery capacity:200mah dual MOS protection
  • Earbuds battery capacity:40mah
  • Music play time: 5h; Call time: 6h;
  • Charging time: 1h; Stand by: 12h
  • Charging port:micro USB