Features: brand new and high quality. 7000 rpm fan heat dissipation, good heat dissipation effect and silent. Convex-type magnetic absorption is used for heat dissipation, and the spring-type refrigeration sheet closely fits the mobile phone. Equipped with magnetic ring for heat-generating electronic devices such as tablet notebooks. Rather than the traditional mobile phone radiator, our semiconductor mobile cooler can cool down in one second. Realizing fast cooling, no freezes during the game, no frame drop, and improve the comfort of the game experience. Specifications: Material: PCPlastic Size: approx 6x6x2cm/2.36x2.36x0.79 inches Color: Black/Silver Interface: type-c interface Speed: 7000/min Noise: 22 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 difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Convex Magnetic Semiconductor Cooling