Feature:1. Remarkable Cooling Performance 2 powerful fans keep your laptop from overheating, cooling down the temperature of your system.2. Compact and Lightweight Design Portable compact and lightweight design which is perfect for travelers and commuters.3. Adjustable and Foldable Arms Foldable four arms can be adjusted to fit your computer\u0027s size, which is convenient to carry.4. Low noise High performance and rather silent, give you a quiet working environment.5. Suitable Devices Compatible with 7\"~15\" notebook.6. Suitable Devices Compatible with 7inch~15inch notebook.Specification:This slim and portable cooler can reduce heat of your laptop so effectively that it can prolong the lifespan of your laptop. The 2 cooling fans can keep your laptop from overheating. With the four folding arms, it can adjust to fit your computer's size, reliable and convenient to carry.Features:Remarkable Cooling Performance2 powerful fans keep your laptop from overheating, cooling down the temperature of your system.Compact and Lightweight DesignPortable compact and lightweight design which is perfect for travelers and commuters.Adjustable and Foldable ArmsFoldable four arms can be adjusted to fit your computer's size, which is convenient to carry.Low noiseHigh performance and rather silent, give you a quiet working environment.Suitable DevicesCompatible with 7"~15" notebook.Specifications:Color: black, green, blue (optional)Number of fans: 2Port: USB 2.0Fan airflow: 28CFMFan speed: 2100rpmPower voltage: DC 5VPower current: 150mAFan size: 6.6 * 6.6cm / 2.60 * 2.60inItem size: 19 * 8.7 * 1.5cm / 7.48 * 3.42 * 0.59in (L * W * H)Item weight: 78.4g / 2.76ozPackage size: 20 * 9.5 * 4cm / 7.87 * 3.74 * 1.57in (L * W * H)Package weight: 104g / 3.67ozPackage list:1 * laptop cooler Note: The package list without user manual.Package List:1 * laptop cooler Note: The package list without user manual.