Feature:1. ABS and Aluminum Alloy Material: The semiconductor phone fan is made of premium ABS and aluminum alloy, durable, suitable for most mobile phones on the market.2. Powerful and Low Noise: Twin turbines and twin engines, strong wind supply, low power consumption and strong power design, with noise reduction, voice chat without interference.3. Dual Core Semiconductor Refrigeration: The heat dissipation speed is 50 times faster, even if live streaming for 10 hours continuously, still has great heat dissipation.4. Energy Saving: When starting, the temperature will drop to 5 degree to reach the preset temperature, enter the intelligent energy saving mode, stop the fan rotation, and start the refrigeration every 90/s to save energy.5. Convenient Design: This cell phone cooling fan supports the modification of the bracket and supports to charge the mobile phone while using, really practical.Specification:Item Type: Phone CoolerMaterial: ABS, aluminum alloyWeight: Approx. 167g/5.9ozOperating Voltage: 5VApplicable Model: 66mm/2.6in to 90mm/3.5in wide mobile phone.Package List:1 x Phone Cooler1 x Specification1 x Charging Cable1 x Screw Head