Specification: Voltage: 110~120V 60Hz.  Power: 250~550W.  Speed: Low speed 22000r/min, high speed 33000r/min.  Wind Speed: Low speed 25m/s, high speed 35m/s.  Line Length: 3m/10ft.  Size: 14x15cm/5.43x5.98 in.     Features: 【High Pressure】The compressed air duster blows immediate and continuous high-pressure air to clean dust debris and dirt away from any Electronic device in your home or office. (Need to connect the power supply when using).  【Multi-use】WIth 8 extra nozzle attachments making it an easily maneuverable versatile device. It can be used for any of your expensive electronic devices such as your computer, keyboard, laptop, copy machine, medical equipment, camera, etc. Especially for your inflatable swim pool.  【Two Speeds Adjustable】There are two gears to adjust the speeds, which can adjust the high to low. This Electric computer air duster has a powerful 250~550 watt blower motor for long-term use.  【Lightweight and Easy to Use】This dust blower having an extra-long 10-foot cord and with a weight of only 1.9 pounds. Easy to use and allows you to maneuver around easily. (When using, DON'T put it on the table to block the air inlet, otherwise, it will cause serious heating or stop working.).  【Environment Friendly】An alternative to compressed air can. With landfills overflowing with non-biodegradable waste including compressed air gas duster, our computer cleaner is safe for the environment and for the cost of 8-12 cans of air cans you can own a air blower.     Package Included: 1 x Electric Duster.  1 x Standard Nozzle.  1 x Tapered Flow Nozzle.  1 x Air Incision Nozzle.  1 x Air Pump Adapter.  1 x Brush Adapter.  1 x Inflatable Pump Nozzle.  1 x User Manual