Easy Mount with Spring Adjustment : Flexible spring installation, convenient, simply apply the film to the camera, align it, and press to achieve a stable fix that won't deform or detach easily. Adjustable spring mount would fit various camera back space | Wide Application : The Cooling Fan is compatible with a wide range of cameras including Sony ZV-E1, ZV-1F, ZV-1, ZV-E10L, a7RV, a7 IV (A7M4), a7S III (A7S3), A7C, FX30, A6700, Canon R10, R8, R7, R6 Mark II, R6 MK1, R5, 90D, FUJIFILM XS10, XT4, X-H2S, X-S20, X-H2, Nikon Z30 and more | Rechargeable Built-in 200mAh Battery : The fan is equipped with a rechargeable built-in 200mAh battery with a Type-C interface and the option to connect an external power bank for charging while in use. Real-time monitoring of temperature and fan speed is made possible through the 0.46 inch OLED display design | Three Modes Of Operation : The fan provides efficient and stable full-range cooling with high cooling efficiency and optimized external cooling path for wide range coverage. It operates in three modes with a high-speed fan and low noise operation | Compact Size : The camera cooling fan is compact and lightweight, weighing only 0.13 lbs and being palm-sized, making it easier to store and carry. There are two colors available: black and silver