EXTENDED USAGE - Features a robust 2010mAh capacity, ensuring prolonged power for your Insta360 X4 Air Action Camera during critical moments. OPTIMIZED PERFORMANCE - Delivers a stable 3.89V nominal voltage, providing consistent and reliable power delivery for seamless operation. BROAD COMPATIBILITY - Specifically engineered for perfect integration with the Insta360 X4 Air Action Camera, guaranteeing optimal functionality. DURABLE CONSTRUCTION - Encased in high-quality plastic, this battery is designed to withstand rigorous use in various environmental conditions.