Features: Long standby time, can work up to 50 minutes continuously after fully charged. Low noise, less than 75dB. No unpleasant noise will be produced. Wireless handheld design, more convenient to use. Especially suitable for cleaning keyboards, cars, sofas, pet houses, etc. Small size, elegant appearance, easy to carry around! specification: Material: High quality ABS Charging time: about 4H Input voltage: USB 5v Rated power: 8w Working noise: =75dB Project size: about 20913730mm include: 1 x vacuum cleaner 1 x brush nozzle and flat nozzle 1 x USB charging cable 1 x user manual