The Insta360 X4 Air is equipped with a built-in 2010mAh lithium-ion battery, offering approximately 90 minutes of continuous recording at 5.7K30fps under optimal conditions. This performance is commendable for its compact form factor, catering to users seeking portability without compromising on video quality. Charging the battery is efficient, with a full charge taking approximately 75 minutes using a standard 5V/3A adapter. The X4 Air's battery is designed to perform well in temperatures as low as -20°C (-4°F), ensuring reliable operation in various environmental conditions. However, it's important to note that actual battery life can vary based on factors such as resolution, frame rate, environmental conditions, and usage patterns. For instance, recording at higher resolutions like 8K or using features like Active HDR may reduce the overall battery life. To ensure optimal battery performance, it's recommended to keep the camera firmware up to date and to follow best practices for battery care, such as avoiding extreme temperatures and overcharging. For extended shooting sessions, carrying spare batteries is advisable, as the X4 Air allows for hot swapping without interrupting recording. Technical Specification: Sensor: 1/1.8-inch CMOS Aperture: f/1.95 Focal Length: 6.4 mm (35mm equivalent) Shutter Speed: Up to 1/8000s Photo Resolution: 72 MP (360°) Video Resolution: 8K at 30fps, 5.7K at 60fps, 4K at 100fps (single-lens mode) Formats Supported: DNG/RAW, INSP/INSV Bluetooth: Bluetooth Low Energy 5.2 Wi-Fi: 802.11 ac USB: USB 3.0 Type-C MicroSD Card: Supports microSD cards What's in the Box? 1x Insta360 X4 Air Camera: The main device featuring dual 1/1.28-inch sensors for 8K resolution. 1x Standard Lens Guards: Protective covers for the camera lenses. 1x Type-C to Type-C Cable: For charging and data transfer. 1x Lens Cloth: To clean the camera lenses. 1x Protective Pouch: A soft case to store the camera and accessories. 1x User Guide: Instructions to help set up and use the camera.