Semiconductor Cooling Technology: Utilizing advanced semiconductor technology, this cooler functions similarly to an air conditioner by directly transferring cool air to your phone Efficient Cooling System: At an indoor temperature of 27℃ ±1℃, the product reduces the temperature to below 22℃ within 30 seconds of operation. In a no-load state, the minimum achievable temperature ranges from 8-12℃ Low Voltage Operation: Starts cooling at a minimum voltage of 3.3V, with optimal performance at 5V, making it compatible with most power sources and ensuring consistent cooling Quiet and Effective: The built-in fan works silently while cooling, maintaining a stable temperature without the noise, making it ideal for gaming, streaming, and long calls Universal Compatibility: Designed to fit a wide range of phone sizes, this cooler is a must-have accessory for anyone experiencing phone overheating issues Specifications: Size: 60x94.5x39mm Net weight: 102g Material: ABS Compatibility: Mobile phone width is about 58-98mm Input interface: TYPE-C Input voltage: 5V Input current: 1.5A Working compatibility: Non-inherent charging protocol Heat dissipation area: 2021mm2 Cooling effect (ambient temperature 25℃): 7-11℃ Cooling effect (ambient temperature 30℃): 10-14℃