The uNu Aero wireless battery case and charging pad for Samsung Galaxy SIV feature the newest advancements in wireless charging technology. The Aero battery case charges wirelessly. Straight from the Aero charging pad. No wires necessary! Simply place the Aero case on the charging mat and the phone will begin to charge. The Aero battery case features an ultra-thin seamless integration which allows syncing and charging without having to remove the case. Also, the Aero for Samsung Galaxy SIV is perfectly designed for easy access to all buttons and controls on the phone. In true aeronautic fashion, the Aero is designed to be slim and sleek for your charging pleasure. With an ultra-slim frame and light-weight structure, the Aero is made to be the perfect charging accessory for the Samsung Galaxy SIV. One of the best new features of the Aero is its color options. Available in 7 vibrant colors, the Aero is the perfect color accessory for your Samsung Galaxy SIV. Pick the color that suits you and your ready to show off your Galaxy SIV in a whole new way. The internal battery of the Aero battery case is powerful enough to provide an additional 100 percent charge to your Samsung Galaxy SIV, which means more talking, texting, and browsing. In fact, the Aero can add up to 10 hours of additional talk time, or 350 hours of stand-by time. The protective frame of the case provides a sturdy defense against the accidents of everyday life. With enforced corners, sturdy backing and a raised-edge lip to protect the screen, the Aero is ready for the unexpected. The Aero is completely expandable to accept multiple charging mats. Leave a mat at home, in your car, and at work. Additional mats will keep your charging wirelessly, no matter where you are.