ITEM NAME:mx3 fly air mouse with voice ir learning pro backlit 2.4g wireless keyboard ME Product Description: Type: backlight keyboard Interface: USB Connection with computer: wireless Transmission and control: 2.4G RF radio frequency technology Key: 81 key Battery type: two section seven batteries (AAA*2 does not contain) Material technology: plastic + silica gel The power consumption of the whole machine is almost no electricity consumption, which is in line with the "Green Star" environmental protection standard of Europe. Sensor: 3 axis gyroscope +3 axis accelerometer Remote control distance: greater than or equal to 10 meters. Appearance color: Black Packing list: 1 x Mini flying squirrel 1 x USB adapter 1 x manual 1 x packaging box.1 x Mini flying squirrel. Type: backlight keyboard. Connection with computer: wireless. Material technology: plastic + silica gel. Key: 81 key. Battery type: two section seven batteries (AAA 2 does not contain).