This Mobile Phone Radiator equipped with 9 Blade Fan, it can keep your cell phone cool down quickly by high speed and low sound cooling at 5000R/min. It can help reduce the loss of the mobile phone battery and extend the battery This Cell phone Fan provides a good deal of cooling for your mobile phones while playing Games and Watching Videos or live broadcast. Built-in 400 mah battery, long-lasting battery life, can dissipate heat continuously for at least three hours when you outside. The mobile phone cooler has a very small design that will not obstruct your fingers during gaming, allowing you to use the entire surface of the smartphone with ease. Our phone cooler features adjustable claws that you can use to secure it to virtually any phone type. Because it is completely wireless, it does not require special connectivity. In fact, all you have to do to turn it on is open the bracket, clip onto the back of the phone and switch on.