The cooler features the 9-blade fan, powerful heat dissipation, turbine exhaust technology for quickly dissipating the mobile phone heat. Low noise operation, does not interfere with voice chat, frequency conversion DC motor, stable wind for better use. The cooler is small and convenient, whose size is about one-third of the size of the mobile phone, making gaming perfect. Retractable buckle design, perfect for all mobile phones. USB charging, can work for a long time. Product material: ABS Name: Mobile Phone Radiator Power supply: Charging batteries Product size: 45 x 76 x 16mm/ 1.77 x 2.99 x 0.63in Package Included: 1 x Cell Phone Radiator 1 x USB cable "all Products From Us Have Undergone Strict Quality Checks. if There Is Any Quality Problem Or You Are Not Satisfied With The Product contact Us. we Will Give You The Best Solution."