... charge Waterproof and dustproof design Lightweight, compact, easy to carry and handle Ideal for students, businessmen, travelersDevice ... Standard: Bluetooth 3.0 Operation Distance: 10m Modulation System: GFSK 2.4G Operation Voltage: 3.0-5.0V Working ... User Guide-------------------------------- Free OEM your LOGO ------------------------------- new Bluetooth keyboard case with 10M Range for iPad Mini