Features:-Two different vacuum nozzles allow you to reach the narrowest space-even debris on the keyboard. -Easy to clean, use a brush to remove dust. Including debris and pet hair, they also fall in hard-to-reach areas. -Elegant appearance, compact and flexible. The portable handheld size allows you to take it to any place you want to organize. -Easy to maintain. Just open the dust collector, take out the filter, rinse it with clean water, and then dry it. -High power and low noise, this is a must for everyone! Technical data: Material: ABS Battery Battery capacity: 2000mA Input voltage: DC-5v Power: 8W Decibel: 75DB Note: When the battery is low, the suction power is weak. So you should charge the vacuum cleaner. Also check if the nozzle is clogged and the filter is clogged Move the nozzle closer to the contact surface to get more suction. Clean the fabric filter at least once a month. If it is too dirty, it must be cleaned immediately. Charging current: The current control does not exceed 1A during normal operation, otherwise the circuit board may be burned out.