Connection: 2.4GHz wireless (USB receiver)
Working distance: up to 10m
Touchpad and integrated left / right
buttons 5 separate hot keys; 12 shortcuts
USB nano receiver
Interface: USB 2.0
2 AAA batteries
Keys: 88
Touchpad size: 73 x 62 mm
Keyboard size: 327.6 x 123.8 x 16.3 mm
Weight: 282g
More Info:
https://www.mediacomeurope.it/prodotto/M-MCK891TV/wireless-keyboard-mck891tv-con-touchpad