• 300mAh rechargeable phone cooling fan, continuous heat dissipation for 3 hours after full charging, and no cable to interfere with your gaming operation
• The silent run does not affect the sound of the game, bringing you the best gaming experience
• Fast cool the device in seconds, it can help reduce cell phone battery loss, improve cell phone performance or automatically shut down due to high temperature, and can also extend battery life
• With a retractable clip design, it can be installed on the back of the mobile phone, the width is 4-6.7 inches

Specifications:

• Battery capacity: 300mAh
• Installation: snap-on type
• Compatible phone size: 4-6.7 inches
• Use time: about 3h