Feature:1. Application: Designed with a voltage of 3.7V and a capacity of 380mAh, this lithium polymer battery is suitable for SYMA X21, X21W, X26, X26A RC drones.2. Compact and Portable: The lipo battery is small and lightweight, making it easy to carry and ensuring it doesn't add extra burden to your RC quadcopter during use.3. Stable and Durable: The premium casing of the battery ensures its durability and stability. It is built to withstand regular use and offers a long lifespan, providing reliable power.4. Long Lasting: With 380mAh large capacity, the lipo battery provides an extended battery life, allowing you to use your RC quadcopter for a longer period of time.5. Safe to Use: The RC drone lipo battery is equipped with overcharge protection and short circuit protection, ensuring the safety of the charging process.Specification:Item Type: Drone LiPo BatteryMaterial: Lithium polymerWeight: Approx. 25g/0.9ozCapacity: 380mAh (shipped with pure battery)Voltage: 3.7V.Package List:1 x Drone LiPo Battery