Lightweight silicone pad on the edge of the cooler can absorb the phone firmly to prevent it from falling and scratching. This radiator can reduce the temperature of the mobile phone, effectively prevent the battery circuit aging, and extend the service life of the mobile phone. Made of ABS high quality material, it is lightweight and sturdy. The part of the clip is made of soft silicone. The light and convenient cooler edges do not damage the phone and do not touch the buttons, which does not affect the use of the phone. The length of the product is 81.5mm, the width is 51.5mm and the height is 23mm. And the cable length is 1.5m. Plug-in type is plug and play, which can be powered by mobile power/USB charging cable. Cooling radiator is powerful and equipped with USB data cable. Plug in the power source to automatically turn on and cool down immediately. You hold the mobile phone firmly, do not loose, so that the radiator is fixed tightly, the cooling effect will be better. It works on all models of for iPhone/for Android phones. Item Name: Mobile Phone Radiator Material: ABS,Metal Compatible Models: for iPhone, for Android Supply Voltage: 5V Battery Capacity: 400mAh (Included, 4 Hours of Battery Life for Rechargeable Type Only) Power Interface: MICRO Suitable Mobile Phone Size: 4.7-7.5 Inch Mobile Phone (70-95mm) Cable Length: 1.5m Plug-in, Rechargeable Gears: Large: 7000 RPM Medium: 5500 RPM Small: 4000 RPM Usage: Snap on/Back Clip Stretch Width: 66-96mm Size Details: Product Size: 81.5mm x 51.5mm x 23mm/3.21" x 2.03" x 0.91" (Approx.) Length: 1.5m/59.06" (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 Mobile Phone Radiator 1 x Charging Cable 1 x User Manual