Feature:1. The heat dissipation bracket adopts sporty design, telescopic and foldable shape, easy to carry.2. Ultrathin speaker stereo sound is clear and pleasant, and the sound can be adjusted (2 speakers)3. Ultrathin transparent lightemitting fan has large air volume and good heat dissipation effect.4. Applicable to all kinds of notebook computers, after the power is turned on, there is a blue LED glowing.5. Suitable for AA or AAA lithium battery charging and mobile phone charging (dc plug)6. Plug and play, support familiar plugging, support USB2.0, backward compatible with 1.1/1.0, speed up to 480Mbps.Specification:Item Type: LaptopCoolingPadColor: BlueMaterial: ABSSpeaker Speaker: Ultrathin Φ50mm×2Speaker Output Power: 1.5W+1.5WSpeaker Frequency Range: 150Hz20KHzSpeaker Resistance: 8QSpeaker Input Sensitivity: 20MVPower Supply Mode: USB power supplyFan Air Volume: 5.6CFM28CFMFan Speed: 500RPM2500RPMFan Noise: 23dBAFan Rated Voltage: DC5VFan Size: Approx. 60 x 60 x 12mm / 2.4 x 2.4 x 0.5inSystem Support: For Win95osR2/98SE/Me/2000/XP/Vista/Linux2.4/OS X8.5 or abovePackage List:1 x Heat Sink1 x USB Data Cable1 x o Cable1 x DC Socket Charging Cable