Product Description: 3.7V/300mAh LiPO Battery: 507153/54 & 505033/34 Replacement Battery for Quadcopter X4 Angry Bug 2.0 500507153 and Toxic Spider 2.0 500707154, 3.7V/300mAh LiION with Molex connector.

General Safety Instructions: We ask you to take note of the following safety instructions regarding your safety and the proper handling of the product before using your remote-controlled model for the first time. Remote-controlled models and the necessary accessories can cause significant harm to people and the environment if used improperly. Please note that children under 14 years of age should be supervised by an adult when using a remote-controlled model, especially when handling batteries and accumulators.