Power:DC 5V/1A
Working current :≤ 30mA
Quantity of negative ions:≥20x10^6(20 million /cm³)
Battery Type: Lithium rechargeable battery
Battery Spec.: 300mAh
Battery life time:≥20 hours
Charging time:≤2 hours
Noise level:≤20 dB (1 meter away)
Waterproof:IPX2
Dimension:61x30x26 mm
Weight:31g