... for pc 2, mini-sized keyboard with Backlighting. 3,4 in 1 :Keyboard,mouse,touchpad,laser point Item Name: portable usb bluetooth ... Built-in rechargeable battery, or a PC USB port.Connection: USB port Package Contents:Mini Wireless Keyboard and TouchpadUSB ... Applicable for the lecturer, meeting presenter, classroom teacher, sales manager or anyone using a projected image. portable usb bluetooth wireless ...