dust-proof portable bluetooth keyboard for ipad / ipad2 Computer and Smart phone

**Bluetooth 2.0 interface standard 

**Operating distance to 10 meters.

**Modulation system:GFSK
**Operating temperature:-10== +55°C. Workable environment:0-55°C
**.Working current:<5.0mA

**Standby current: 2.5 mA

**Operation Voltage:3.0-5.0V

**Standby time:150 hours;  

**Battery:standby time-60days

**Uninterrupted Working Time:55 hours

**Charging Time:4-5 hours

**Lithium Battery Capacity:160 mA

**Lithium Battery Life:3 years

**Lithium Battery Specification:45*16*5 mm

**Keylife:5 million strokes

**  Dimension :245 (L)*197(W)*11.6(H) mm   Weight: 295±30g 

**.Enclosure made of aluminum alloys is used to make the machine more attractive, fashionable, dust-proof and waterproof