**Material: aluminum alloy
**Specifications:
**Model number: KF02
**Power output (rms): 2 X 3W
**Frequency response range: 100Hz-18kHz
**Signal to noise ratio: ≥65dB
**1000mA, 3.7V with overcharge protection
**Rechargeable Li-ion-poly (built-in)
**Fully charges: < 2hrs
**Working hours： 5 hours
**Functions:
**Hand-free for phones: Bluetooth enabled
**3.5mm Aux input supporting second audio source
**CSR2.1
**Available color: red silver
**Packing:
**Gift box or neutral packaging