The Nyko Power Kit Plus includes two rechargeable battery packs that provide up to 25 hours of gameplay for Xbox One controllers. With this kit, you can say goodbye to constantly buying batteries and never run out of power during your favorite games again. The battery covers are durable and secure, and the kit comes with 2 black and 2 white covers to match your Xbox One controllers. The 8ft charging cable provides ample length for comfortable couch gaming or those further away from outlets. The accessories are simple and safe to install - attach the rechargeable battery pack, place the cover over it, and you're ready to game. CE approved for safety and quality assurance. Compatible with Microsoft's wireless controller for Xbox One. Nyko Technologies is a leader in gaming technology and has been developing and specializing in interactive entertainment, computing, consumer electronics, portable audio, online, and wireless technologies since 1996 in Los Angeles, California.