iPhone 5 5S Battery Case, EasyAcc B5 MFI Ultraslim 2200mAh Extended Protective Battery Charging Case for iPhone 5 5s [24-Month Warranty] Double your battery life: The built-in 2200 mAh grade-A lithium-polymer battery can provide 100% additional battery life to your iPhone 5/5s, which means you can get a maximum of 250 hours of standby time, 10 hours of video playback time, 40 hours of audio playback time, 10 hours of talktime, or 10 hours of web surfing time. Ultraslim: At a weight of 66 g and a thickness of 6.1 mm, this battery case is only 60% as heavy and 80% as thick (excluding the sides) as an iPhone 5s, keeping your iPhone running longer with the least amount of bulk. Extremely safe and environmentally friendly: Meets the specifications for MFi, CE, FCC, and RoHS. MFi-approved means that this battery case has passed a number of strict tests, including OTA and ATS, while passing CE, FCC, and RoHS means that the battery case is certified by both the EU and the US for safety and eco-friendliness. Thus, the battery case is compatible with all iPhone 5 and 5s phones running iOS 7.0 and above and won't weaken your phone, Wi-Fi, or Bluetooth signal. Offers complete 360 protection: The sides of the battery case are slightly higher than the screen of your iPhone, while the detachable top attaches to the rest of the battery case neither too tightly or too loosely, which means that if your iPhone is dropped, the sides will make contact with the ground first, protecting your screen, while the detachable top will be the first thing to come off, dispersing the impact of the drop. Worry-free after-sales service: EasyAcc provides a 12-month warranty and free lifetime technical support for this battery case. You'll also receive an extra 12 months of warranty (for a total of two years of warranty) if you purchase any battery case from the B5 series right now. Please do not hesitate to contact our support team if you have any questions.