Wireless Keyboard Mouse Set for FANTECH WK895 GO Pop Office - Black Keyboard There are 110 keys. Two AAA batteries are needed (not included). Dimensions: 430x125x30 mm; mass: 403 g A mouse There are five buttons. One AA battery (not included) is needed. Dimensions: 110x70x30 mm; mass: 55.5 g Click Here for Additional Information. Wireless Keyboard Mouse Set for FANTECH WK895 GO Pop Office - Black For Additional Gaming Keyboard Go Here Display More