**Model number：KF02N
**Power output (rms) : 2 X 5W
**Frequency response：100Hz - 18kHz
**Signal to noise ratio : ≥ 65dB
**1000mA,3.7V with overcharge protection
**Rechargeable Li-ion-Poly (built-in)
**Fully charges < 2 hrs
**working hours：5hours
**Functions :
**Hand-free for phones Support NFC
**Bluetooth and NFC enabled
**3.5mm Aux input supporting second audio source
**CSR2.1