Conveniently store and charge two Xbox One controllers with Nyko’s Charge Block Duo for Xbox One. The Charge Block Duo for Xbox One comes with two Charge Blocks, two 1,200mAh batteries and two replaceable battery covers. This allows for an easy drop and charge design, no cord, wires or plug needed. Connect multiple Charge Blocks together from the same or different platform to create your own customer charger. The power cable for the Charge Block doubles as a charge cable. No more low batteries during extended gaming sessions. The low-profile design allows for the Charge Block to fit easily in most entertainment centers while the LED charge indicator keeps you notified of the charging status. Connecting more than 2 Charge Blocks require a USB 3.0 connection.