Specifications: The sleek design of the grip optimizes the light and thin feel, which can effectively relieves finger soreness. Customizing game hotkeys to make it easier for you to operate while playing games. 9 blades with 4500rpm makes it has the function of fast heat dissipation and noise reduction duct. Item Name: Radiator Material: ABS, Metal Battery Capacity: 2000mAh (Including Battery) Fan Speed: 4500rpm Interface Type: USB Compatibility: 4-6.2 inch Mobile Phones, Fully Compatible with Mainstream Mobile Phones Features: Low Noise, Easy to Install, Heat Dissipation Size: 15.6cm x 9.6cm x 3.8cm/6.14" x 3.78" x 1.50" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Radiator 1 x USB Cable 1 x User Manual