Frequency: 50HZ,
Power: 5W,
Power on: USB connection,
Noise: 30db,
Negative ion concentration: 15 million pcs/cubic meter.

Name: Air Purifier
Voltage: 5V,
Cable length: 80cm,
size:16.6x6.3cm
Material:ABS
colour:Black

Package Contents:
1 x purifier
1 x data line

Only the above package content, other products are not included.
Note: displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.