1 x Rechargeable Battery Pack for X-series S/X ControllerLED Indicator: The LED indicator next to the USB Type-C port will light up green to indicate that the battery is charging.Upgraded 800mAh NiMh Rechargeable Battery: This battery pack features an 800mAh NiMh rechargeable battery. A good option instead of short playing time.Package Contents: 1 x Rechargeable Battery Pack, 1 x USB Cable (60cm)