Advanced Semiconductor Cooling: This cooler uses semiconductor technology, similar to air conditioning, to rapidly cool your tablet. It’s designed to prevent overheating during intense gaming or heavy use, ensuring smooth and uninterrupted performance Quick Temperature Drop: In a room temperature of 27℃ ±1℃, the device can lower the surface temperature of your tablet to below 22℃ within 30 seconds. In a no-load state, it can achieve temperatures between -7℃ and -2℃, providing an exceptional cooling experience Three Cooling Levels: The cooler offers three distinct cooling modes. The first level is a silent mode (5V operation, compatible with all phone adapters), the second level is a powerful mode (requires a 9V/2A adapter), and the third level is an ultra-powerful mode (requires a 12V/3A adapter) for maximum cooling efficiency Real-Time Temperature Display: Equipped with an intuitive display, the cooler shows the current cooling temperature along with snowflake icons indicating the active cooling mode - small snowflake for the first mode, medium for the second, and large for the third Magnetic Attachment for Tablets: Specifically designed for tablets, this cooler easily attaches magnetically, providing a stable and secure fit that won’t interfere with your device’s usage Specifications: Size: 105x105x30.5mm Net weight: 183.8g Material: ABS Compatibility: All tablets Input interface: TYPE-C Input: 9V/3A 12V/3A Power: 27W Working compatibility: Non-inherent charging protocol Heat dissipation area: 1600mm² Cooling effect (ambient temperature 25℃): -7 to -2℃ Cooling effect (ambient temperature 30℃): -5 to 2℃