Battery charger, battery, controller ectension cable
It can protect your for 360 Controller with secure cicuitry
It has overcharge protecting.

Battery:
Color: white
Capacity: 4800 mAh
Battery Output: DC 2.4V
Battery can also be charged through any USB port, included the USB port on the xBox 360 console

Battery charger
Color:white
Red / Green LED charging indicator lights
Recharge the battery pack by using USB Connection
Connects to XBOX 360 console or anything with a USB port

Xbox 360 extended cable
Color: white
Get 18 hours worth of continuous power
Protect your Xbox with secure circuitry
Charge your controller directly with the cable
One side connects to the console and other connects to USB port
charge your Xbox 360 Wireless Controller through your Computer/PC/Laptop/Xbox 360 Console simply by connecting them

NOTE: accessories ONLY

Package dimension: 184*140*64mm
Package weight: 222g

Package include:
1* battery pack
1* battery charger
1* xbox360 controller extension cable