Features:

l         The best chess pieces " cloud " as the product appearance, beautiful black and white,

l         Used our company's micropore muffler patent technology, With in no-resonance environment small basic not sounding

l         With safety 1000 mAh portables USB power supply, Also in the outdoor can give the mobile phone emergency power supply.

Specifications:

1) Rated Power: 1.5W

2) Oscillator Impedance: 4Ω±0.3Ω

3) Frequency Response: 150Hz - 15KHz (depending on the resonance interface)

4) Operating voltage: 3.2-5 .5 V

5) Working current: ≤ 0.5A

6) Dimension:Φ30.0 mm × 10.8 mm

7) Weight: 15.6g

8) packing list:cloud vibration speakers, USB cable, USB power