Whatsapp 9866889528 【30W OVERFREQUENCY COOLING FAN PC GAMING】The Charging Plug not less than 30w (Otherwise it will affect the cooling effect).The Tablet cooler for gaming uses the most recent TEC semiconductor Cooling Chip technology to instantly cool your devices, maintaining the ideal temperature without screen dimming or automatic shutdown due to high temperatures, and preventing the performance of your Tablet device from being affected. 【SIMPLE TO OPERATE 】Need to plugged in the cooler.