AZFUNN Portable Computer Vacuum Cleaner Tips for Efficient Cleaning: Please try different combination of the suction nozzles for different dirt: 1)You can use the brush sweep the dust and particles together first, then turn on the vacuum cleaner to suck up. 2)Please use the brush nozzle to clean and suck the dust on computer keyboard. 3)Please use the flat nozzle to suck the dust or crumbs on corner and crack. 4)For bigger particles on desk, you do not even need to mount the brush nozzle or flat nozzle to clean, using the small brush and round nozzle is ok. Features: Portable & Cordless: Lightweight mini handheld vacuum cleaner, cordless design make it pretty handy, you can use it anytime any where. Multifunction & Wide application: - Vacuum hidden dust in the gap of keyboard, air conditioner's air vent; Vacuum the cigarette ash, bread crumbs, paper or pencil scraps on the desk both at home or office. - Vacuum pet hair on sofa, food crumbs in pet house. - Vacuum dust, cigarette ash in car. - Vacuum the particles in makeup bags, other small scraps in handbag. Built-in 2000mAh Lithium Battery: Long standby time, work up to 50 minutes continuous after full charged. Convenient Assembly: There is washable filter in the pot of vacuum, you can remove it and clean the dirty every time you use, easy to assemble. Durable & Long Lasting: High quality ABS material and advanced motor make it durable and long lasting, Two side air vents help for heat radiation. Specifications: Material: High quality ABS Input Voltage: USB 5v Power: 5w Operation Noise: ≤75dB Item Size: Approx. 209 * 137 * 60 mm / 8.23 * 5.39 * 2.36 inch Package included: 1 x Vacuum Cleaner 1 x Flat Nozzle 1 x Brush Nozzle 1 x USB Cable