Infrared Wireless Mini USB Keyboard with Trackball Black

1 Year 1.30" 1.90 Lb 13.30" 23 Ft 400 Hour 6.80" 89 Transmitter: Frequency: 38khz Effective Angle: Within 45 Degrees Distance: 7 Meters Power: 3vdc(2) 1.5v Aa Batteries Receiver: Power: 5v Dc, 300ma Max. Connected To Host Computer Led Indicator: Num Lock, Caps, Scroll Lock, Power Led And Active Led Sensor: High Performance And High Ems Immunity Aa Ack-573ub Ack-573ub Wireless Mini Keyboard Ack-573ub Is Especially Designed For Windows, It Has Built-in Trackball For Mouse Emulation, Wireless Input With Built-in Infrared Technology, 88/89 Keys Keyboard With Embedded Numeric Keypad And 12 Dedicated Function Keys, And Fully Function Of 104/105 Keys. Adesso Adesso, Inc Black Infrared Keyboard Pc Qwerty Trackball Usb Wireless Www.adesso.com