Phone Cooler Semiconductor Dual Cooling Fan Radiator Smartphone Temperature Display Heat Sink Cell Phone Gamer Coolers USB 2022 1. Rapid cooling 2. Temperature drop 3. Turbo cooling 4. Battery protection 5. RGB colorful lights 6. Bass worry-free Product name: K4 mobile phone radiator Heat dissipation type: semiconductor refrigeration Voltage and current: 5V2A Charging interface: Type-C/USB Use model: width 68-88mm Product material: ABS PC aluminum alloy Product size: 111X77X29mm Instructions for use: 1. Real-time temperature display, you can manually set the ideal temperature 2. After starting, it will drop to 5 and reach the preset temperature, enter the intelligent energy-saving mode, stop the fan rotation, and start refrigeration every 90/s energy-saving cycle 3. Press or- to adjust the temperature 4. Temperature control range: 0-40, the maximum temperature drop is 15-20 (according to the difference of outside temperature) 5. After power on, long press the switch button 2/s to start the machine 1*Mobile Phone Radiator 1*Charging cable