SYCOM Shock Proof PU Leather Wireless Bluetooth Keyboard Flip Folio Case Cover For Samsung Galaxy S4 SIV GT-I9500 Famous brand Broadcom chipset makes connection much easy to pair up, fast and stable Excellent tactile feeling to typing text and message with this keyboard Built-in rechargeable battery with standby time: 30 days and interrupted working time: 30 hours High quality keyboard with Key Life test: 5 million strikes Fast 6~10 Days Delivery!