Boost radiator heat circulation: Enhanced triple-fan ventilation draws warmth from your radiator and redirects heated air further into the room, helping your space feel warmer more quickly and evenly while making better use of your central heating. 5100mAh rechargeable battery: Enjoy convenient cordless operation for approximately 6 to 16 hours depending on fan speed. Recharge using the supplied USB-C cable, with a 5 V/2 A power adapter recommended for faster charging. Intelligent automatic operation: Temperature sensing automatically adjusts performance, using speed 1 at 28–40°C, speed 2 at 41–46°C and speed 3 above 46°C, with standby operation when the radiator temperature falls below 28°C. Single & double radiator fitting: Strong integrated magnets provide secure placement on suitable steel radiators, while two additional mounting clips are included for single radiators. Compact 41.3 x 10.7 x 8 cm design weighs just 700 g. Easy top-facing controls: Convenient digital controls show temperature, fan speed, remaining battery and timer information. Select three manual speeds or 2–12 hour timer settings, with quieter operation rated at less than 38 ±5 dB.