Features: Adopts new semiconductor refrigeration technology, fast cooling, providing you a better gaming or watching experience, can also extend the life of battery. Built-in silent fan, 7000 rpm for DC motor for noise reduction operation, mute design without any annoying noise. Intelligent frequency conversion to prevent condensation inside the phone and effectively protect the phone, great for playing games, watching movies, etc. Compact in size, easy and portable for you to carry or store in your pocket. Wide-area compatibility, for phones width within 67 - 89 mm/2.63 - 3.46 inch. Specifications: Model: B5 Mounting Type: Back Clip Power: 10-15W Size of Refrigeration Sheet: 30 x 30mm/1.18x1.18 inch Compatible Devices: width within 67 - 89 mm/2.63 - 3.46 inch Material: Plastic Packing Size: Approx. 15x10 for cm/5.90x3.93 inch Note: Please allow 1-2cm errors due to manual measurement,pls make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Piece B5 Cooling Fan