Specifically designed for Insta360 X4 action camera batteries charging 2. Functions as both a charger and a battery protection case 3. Dual-slot charger with independent power supply; Can charge two batteries simultaneously and manage each charging status separately to prevent overcharging, ensuring safety and reliability 4. Simple and easy-to-read indicator lights: Red means charging, green means fully charged 5. Input: Type-C 5V 3A 6. Output: 4.4V 1.5A