AiR Topteng - Phone Cooler - Cooling Back Clip Heatsink, 54g Lightweight for Gaming/Live Stream, for iPhone/Samsung - Blackfrom $12.99 up to $19.99 Compare prices2→Maximize your phone's performance during intense gaming, live streaming, or long sessions. The S-01 Mobile Phone Heatsink is a compact, clip-on cooling radiator designed to actively dissipate heat fro more→m your device. Its universal back-clip design fits most iPhones, Samsung, Xiaomi, and other smartphones, helping to prevent overheating, reduce lag, and maintain peak performance when you need it most.