With cooling pad and notebook speaker USB Acoustic and heat ventilation Notebook heat ventilation and speaker cushion Colors: black and silver Description of computer pad: Designed for notebook computers (the pen) Rapid expansion of heat and high-fidelity sound effects Suitable for variety of market power of the pen, the use of super energy-saving power amplifier Designed to enhance the body structure of the laptop screen angle Operated for a long time to reduce fatigue, high-fidelity audio to facilitate laptop users to watch DVD, play computer games when rapid cooling to enhance the performance of laptop, and enhance on-the-spot results Specification of computer holder: Dimensions: 320 x 230 x 40mm Weight: 0.8kg Power: 5V DC (computer USB jack) Real power: 2 x 2W Instantaneous power: 40W Fan speed: 1,500rpm