SINCERE CUSTOMER SERVICE:We will put customer satisfaction as our first priority when selling products. So, please feel free to contact us when you met any quality problems. SILENT COOLING:Silent designing fan can efficiently emit wind from all sides, providing a stronger refrigeration effect, no disturbance to your gaming or your Vlog show. RAPID COOLING DOWN:?Need to plugged in?With the semiconductor technology,it's the same refrigeration principle as the refrigerator,not the ordinary fan cooling.Built-in large area chilling plate,instant cooling when connect the power,no need waiting to avoid overheat and ensure stabilize your live streaming or gaming experience. UNIVERSAL COMPATIBILITY:This phone cooler offers two installation options: magnetic attachment and back clip fixation,perfect for most phone sizes. Choose the convenient magnetic snap-on or the sturdy back clip – it's got you covered. COOL DESIGN: ACEDAYS phone radiator is new design and the inspiration came from speed engine of mech warrior,designed for mobile gamers,live streamers,bloggers, and others who use devices for extended periods.The fuselage was made of alloy,PC,silicone and the shape of carbon fiber texture.The phone gaming cooler is with a physical switch for power on/off and there are Two-stage refrigeration adjustment,Short Press, double-gear refrigeration adjustment,Long Press,lighting adjustment.It gives off cool lights when connected to the power.