Features: Quiet and no shockQuiet and no shock. Listen to the voice to distinguish the position, the original voice. The frequency conversion DC motor, the wind is stable without shaking, and the footsteps are clear without frying the wheat. Frequency conversion DC motor, ultra-quiet, does not affect the voice. Evacuates the heatSixth generation 9-blade silent fan. Turbine air-out technology quickly evacuates the heat of the mobile phone, and the super-large straight-through fan runs smoothly without shaking. Phone collingWith this phone cooler, it can cool your devices instantaneously, keeping your mobile device at the optimal temperature without screen dims, freezes or automatic shutdown due to high temperatures, and preventing its performance from being compromised. USB data cableReally mini, really small, not in the hand, smooth operation. Air cooling + cooling. Upgrade 2 in 1 cooling faster Note: This mode is only for cooling models.Equipped with a USB data cable. Plug in the power to automatically turn on, and instantly cool. Phone playingPhone cooler is designed for mobile gamers, live streamers, bloggers, and others who use devices for extended periods. The phone cooling case can cool your device in seconds and keep it at a suitable temperature. Specifications: Color: black, silver Interface type: USB Material: ABS+Metal Additional features: heat dissipation Size(about): 77x45.6x19.7mm/3x1.8x0.78inch(LxWxT) Package Included: 1pc x Phone cooler 1pc x USB data cable Note: 1. Due to the light and screen difference, the items color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement.