Xstars W2961 Wireless Headset TWS Earbuds Handsfree Bluetooth Earphone Noise Cancelling Headphones 
Features:
  • Bluetooth: 5.1
  • Speaker driver diameter: 40mm 
  • Speaker driver sensitivity: 113dB±3dB
  • Impedance: 32Ω±15%
  • Frequency respond: 20HZ-20KHZ
  • Battery capacity: 300mah
  • Music play time: 8h; Call time: 6h;
  • Charging time: 3h; Stand by: 200h
  • Charging port: USB-C
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