深圳市限下诺天科技有限公司

Power supplier Lithium battery 3.7V  300HMA  
Output (RMS): 2.5Wx1
Driver unit:  ∮40×1
Impedance:  4Ω
Frequency response: 80HZ~20KHZ
Input: 无线蓝牙  USB Linie
S/N: ≥90dB
TDH + N:  ≤0.5%
Product size : W55*H64*D55(裸机尺寸)
Material ABS
Bluetooth complian V3.0+EDR
 Bluetooth transmission distance 10 meters
certification CE, ROHS, FCC, BQB(已过认证)