The EnerPlex Surfr AMP for iPhone 6/6S features a 3,000mAh battery pack built into its slim yet durable design, more than doubling the life of your phone. Just like our previous Surfers, the integrated battery pack can be charged by either a conventional wall outlet or our integrated solar panel on the back of the case, offering added comfort in emergency situations. The Surfr AMP is thinner than ever at 14.8 mm thick and uses a unique curved design, providing a smooth, thin contour that makes it easy to slip into a pocket or purse. Text longer and stay out later with the Surfr Amp for iPhone 6/iPhone 6S from EnerPlex. Black. EnerPlex is your ultimate portable power solution for any situation you may encounter.