Features: 1.Save paint and drying time, drawing board design, can adjust three speeds according to different paint quality to adjust wind speed. 2.Low noise, no damage to paint quality, dry air, compact body design, easy to carry. 3.Portable watercolor air dryer, splint design, you can enjoy the painting effect when air?drying, is convenient not to stain the picture and body, clothing. 4.USB charging design, outdoor painting can also be used effectively, 3 speed design, can meet most requirements. 5.Suitable for indoor, outdoor, car, office and other environments, in addition to being used as a paint air dryer, can also be placed on the desktop as a small fan. specification:Item Type: Color Paint Air Dryer Material: Plastic Colour: Black Air Volume Usage Time: First Speed: Low wind about 4 hours Second Speed: Stroke approximately 2.5 hours Third Speed: High wind about 1.5 hours Battery : Lithium battery 2000mAh Power: 3.7V Product Size: Approx. 10.4 x 7.7 x 5.8cm / 4.1 x 3 x 2.3in Instructions for Use: 1. Power On: Press and hold the key for 1-2 seconds 2. The first speed after starting (low wind) 3. Press again to get second speed (stroke) 4. Press the second speed again to select the third speed (strong wind) 5. Shut Down: Hold down the key for 1-2 seconds Charging Instructions: When charging, use for Android port to connect to the air dryer, and use the USB or USB port to plug in the power adapter for charging. When the blue signal light is always on during charging, the charging is normal. When the blue signal light is off, the charging is complete. PackageList: 1 x Host 1 x Data Line Note1. Forbidden to use a power adapter with a voltage above 5V for charging. 2. When powering on, please press and hold the power button for about 1?2 seconds until the work starts; when you want to shut down, please press and hold the power button for about 1?2 seconds until the work is turned off. 3. Manual measurement, there is a small error.