E-Stand Folding Leather Protective Case with Removable Bluetooth Keyboard for Google Nexus 7-Inch Display (SA-NEXUS 2-07-BL-BLK) Durable, stylish and streamlined protective case designed for the Google Nexus with 7-Inch display Full access to all controls Built-in rechargeable lithium battery (lasts approx. 45 hours per charge) Energy saving auto sleep mode when idle longer than 10 minutes Includes USB charging cable