①. Model: B023 ②. Compatible devices: Mobile phones, tablets, laptops, computers and Bluetooth devices ③. Product weight: 197 g ④. Interface: Bluetooth ⑤. Product dimensions: 282.1 mm * 94.50 mm * 8.80 mm ⑥. Package contents: Color case + user manual + charging cable + packaging ⑦. Category: Wireless keyboard, foldable Bluetooth keyboard, mini portable keyboard unit for laptops, mobile phones, office ⑧. Features: - Compact and easy to carry - Compatible with three systems: iOS, Android and Windows - Foldable design - Long battery life: 2 - 3 hours of charging provides up to 10 days of use, suitable for short business trips ⑨. Operating range: 10 meters ⑩. Continuous working time: 48 hours ⑪. Charging time: 2 hours ⑫. Standby time: 180 days ⑬. Battery capacity: 210 mAh ⑭. Key life: >3 million clicks ⑮. Operating voltage: 3.0 - 4.2 V