BAIDATONG 055A 4200mah for samsung s6 edag Extended Battery Case Back up Power Bank (black) Convenient extra power, right at your fingertips Charge your case and device simultaneously with one cable! ON/OFF WHEN YOU NEED IT MOST: Sleek ON/OFF button is available to easily turn the extra juice on or off, whenever you need it! charging time: 4H With 4 LED power indicators: 25% 50% 75% 100% 360 Protective and powerful. Integrated power switch allows you to switch on/off the battery case