Satisfaction guaranteed – Buying on is a easy job that you can do it without any worry of the product quality and after-sales services. If there is anything that you are not satisfied with, We will refund or replace without any questions. Handy Design & Simple Operation – having an extra-long 10-foot cord and with a weight of only 1.9 pounds.With a momentary switch to hold and press for power, It automatically turns off when button is released. Powerful and effective - Our dust blower can blow at 27m/s and 67.5MPH immediately and continuously provide high-pressure air to remove dust, debris and dust from any electronic equipment in the home or office. At the same time it has strong light irradiation-easy to point to the clean area. Alternative to Compressed Air – Inexpensive and nontoxic .you can save money,gas,water and protect the environment. This is a onetime investment so you will never need to buy canned air ever again.you can own a SINSHINE Electric Air Duster. Multi-use – Our SIN SHINE electric air blower can be used for any of your expensive electronic devices, such as your computer keyboard, laptop, copy machine, medical equipment, camera, model vehicles, and blinds etc.