Low Noise & Noise Free
Ultra-Quiet Design: The smartphone cooling fan has a built-in silent motor that can reach 6,000 rpm rotational speeds. The 3-sided wind turbine around the main unit has a wind road, so it accelerates the heat dissipation and increases the amount of heat dissipation to achieve the optimal cooling effect.The smartphone cooling fan is almost no noise (about 30 dB), and even when used in the library, it will not affect people nearby.