1. Bluetooth version: Bluetooth 3.0 2. Effective operating range: within 10 meters 3. Bumper Combo Keyboard Case is a multi-function keyboard case, featuring an adjustable stand, a removable keyboard and a trackpad that make it convenient to type, view, read and sketch. also let you enjoy a flexible operation experience. 4. Lithium battery capacity: 180mAh. 5. All-metal camera cover and 1.1mm lifted bezel, avoid scraping and collision effectively
