Features: 1. Super Quiet: superconducting, silent and vibration-free brushless silent motor, listen to the sound and distinguish position, clear footsteps without frying wheat. 2. Free-Hand: Wireless cooling, long-lasting battery life, release your hands, get rid of the thread entanglement problem, and play freely. 3. Fashionable: The original machine has a sense of grip, wear-free, and does not affect the game. 4. Effective cooling: the use of silent strong wind fan, whether it is live broadcasting, watching videos or playing games, it can quickly cool the phone/tablet. 5. High-quality material: the product is made of aluminum and ABS, strong and durable. Descriptions: Fashion and cool appearance can withstand long-term use and critical eyes. Specifications: Material: aluminum alloy & ABS Color: black Size: 65*23mm Package Included: 1 x Magnetic Semiconductor Radiator Cooling Fan Notes: 1. Please allow 0-1 inch error due to manual measurement. Thanks for your understanding. 2. monitors are not calibrated same, item color displayed in photos may be showing slightly different from real object.