Nyko Charge Block Duo -2 Port Controller Charging Station with 2 Rechargeable Batteries, Covers and included Micro-USB/AC Power Cord for Xbox One Unique design allows for easy, one handed use Includes two Charge Blocks and two 1,200mAh batteries Connect multiple Charge Blocks together from different platforms Plugs into any wall outlet or USB port for rapid recharging LED lights clearly indicate when charging is complete