Specifications:Flip-open cover design, very convenient Compatible 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 KeyboardMaterial: ABSBattery Capacity: 80mAh (Included)Charging Time: 1-2 HoursWorking Current: 0.7-4.0mASleep Current: Working Voltage: 3.0-4.2V (Powered By Li-on)Standby Time: about 48 DaysContinuous Working Time: about 34 HoursUsing Distance: within 10mCompatible System: Compatible iPad Pro (9.7), Compatible iOS System, Compatible Apple Smartphones \u0026 TabletsFeatures: bluetooth-compatible Connection, Rechargeable, Ultra-Thin, Flip CoverSize: 24.4cm x 18.2cm x 1.3cm\/9.61\