Features: B8X Magnetic Semiconductor coolers efficiently dissipates heat during mobile gaming, featuring a secure magnetic attachment and semiconductor cooling for sustain top smartphone performances. Crafted with strong plastic metal mixed construction, this lightweight cooling system integrates a speed fan and heat conduction base to rapidly lower device temperatures by up to 15°C. Ideal for competitive mobile gamers and enthusiasts search uninterrupted Mobile or Genshin effect meeting without throttling issue. Maintains best phone temperature during COD Mobile battles, video streaming, or multitasking with graphics intensive apps through continuous heat absorption. The super thin magnetic semiconductor coolers attaches seamlessly to phone backs, combining portability with industrial management for lags without gaming experiences. Specifications: Material: plastic+metal Diameter: about 64mm/2.52inch Package Includes: 1xRadiator 1xCharging Cable 1xPatch note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.