💡 Product Description Stay cool under pressure — the PIVA B21 Magnetic Back Cooling Fan is built to keep your phone's temperature down during intense gaming, streaming, or heavy use. This magnetic, clip-on cooler attaches securely to the back of many modern phones and includes smart temperature control and app connectivity for real-time monitoring. It features a stylish RGB game ring light to enhance your gaming setup aesthetic, and a strong magnetic holding system to stay firmly in place. Designed for mobile gamers and power users who want performance plus style in one compact package.