Feature: 1. The cooling fan runs smoothly with low noise and will not cause interference to you. 2. Using the mobile phone's radiator, the mobile phone will not heat, not only can save energy, but also can extend battery life. Product name: Smart phone radiator Material: ABS Color: black Vibration mode: no vibration Fan speed: about 5500RPM Interface type: USB Product Size: Mobile phone radiator size: 50 * 50 * 20mm Generally, when a mobile phone is used at high intensity, the main Load is very hot at the chip location, and the heat sink can be quickly cooled to the chip location. NOTE: 1. The color of the smartphone radiator may be slightly different from the image displayed on the website, which is caused by many factors, such as the brightness and brightness of the display. 2. Due to manual measurement, please allow 1-3cm error.