1High quality NiMH rechargeable battery for excellent performance and long life 2Longer charge and play cable for convenient battery recharge from the consoles USB port 3Eliminates the need for expensive batteries 4Compatible with Microsoft's wireless controller for Xbox One 5The extended cord makes it easy to kick back at a comfortable distance from the TV without accidentally disconnecting the controller. Description: The battery provides up to 20 hours of play per charge while the extra long cable allows simultaneous play and charging. The extended cord makes it easy to kick back at a comfortable distance from the TV without accidentally disconnecting the controller. Never worry about running out of battery power for your controller during play again. 1.High quality NiMH rechargeable battery for excellent performance and long life 2.Longer charge and play cable for convenient battery recharge from the consoles USB port 3.Compatible with Microsoft's wireless controller for Xbox One 4.Eliminates the need for expensive batteries 5.Battery Capacity: NI-MH 2400mAh 6.Input: CD5.0V 7.Output: DC 2.4V 8.Cable Length: About 1M NOTE:You may meet the following problems in use. Question 1. Why does the product keep green while charging? Answer:Because the battery doesn't have the function to change light color when fully charged. Normally the charging time is about 4 hours. Package includes: 2 x 2400mAh rechargeable battery 1 x USB Cable