【 Brand New, Unopened 】 Comes with two batteries for continuous use! 【 Contents 】 ・Ulanzi CU01 Cooling Fan (Amazon price: ¥9,299) ・Dedicated Battery 【 Product Description 】 【Superior Semiconductor Cooling Technology】 The Ulanzi CU01 camera cooling system is equipped with a fan and a semiconductor camera cooling system, which can continuously and effectively cool the camera during long video shooting and live broadcasting, ensuring stable long-term operating temperatures. 【Automatic Temperature Control】 The cooling fan's NTC sensor maintains the cooler at a constant 8°C, preventing condensation and saving power with smart temperature control. The LED indicator monitors the temperature in real-time and automatically adjusts settings to protect the camera from overheating. 【3-Stage Airflow Adjustment】 The airflow can be adjusted in 3 stages, allowing you to adjust the strength of the airflow according to the equipment being cooled and the surrounding environment. Level 1 operates quietly, Level 2 achieves rapid cooling, and the AUTO level provides optimal cooling according to the camera's status through smart temperature control. 【Built-in 3000mAh Rechargeable Battery & Charge While Using】 The 3000mAh magnetic battery allows for continuous use of approximately 85 minutes at low wind speed and approximately 70 minutes at high wind speed when fully charged, keeping your camera cool even when you're on the go. With a Type-C connector and the option to connect to an external power bank, you can charge while using it. Note: Please use a 5V charger for charging.