Specifications: Flip-open cover design, very convenient for use. Built-in rechargeable lithium battery, long standby time. Support sleep mode, energy saving and low power consumption. Made of ABS material, simple but stylish appearance. Lightweight and portable to carry. Item Name: bluetooth-compatible Keyboard Material: ABS Battery Capacity: 80mAh (Included) Charging Time: 1-2 Hours Working Current: 0.7-4.0mA Sleep Current: lt;0.2mA Working Voltage: 3.0-4.2V (Powered By Li-on) Standby Time: about 48 Days Continuous Working Time: about 34 Hours Using Distance: within 10m Compatible System: for iPad Pro (9.7), for iOS System, for Apple Smartphones amp; Tablets Features: bluetooth-compatible Connection, Rechargeable, Ultra-Thin, Flip Cover Size: 24.4cm x 18.2cm x 1.3cm/9.61inch; x 7.17inch; x 0.51inch; (Approx.) Notes: Due to the light and screen setting difference, the item 39;s color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: (Tablet Not Included) 1 x bluetooth-compatible Keyboard 1 x USB Charging Cable 1 x User Manual (Chinese amp; English)