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Product Specification:
Bluetooth version : V4.0
transmission distance :  ≥ 15 m
Speaker diameter: 40±0.3mm
Impedance: 32Ω±15%
S.P.L: 99dB ± 3dB(1K,1mW)
Frequency Response: 100Hz-10KHz
Li-battery Capability 500mah
Talking time 24 hours
Playing time 24 hours
Charging time 3 hours
  
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