Finally, I bought a wireless mouse and keyboard. It is logitech brand. Only RM 79 at ALL IT HYPERMALL at Lowyat with free mouse pad. Disadvantage is the mouse don't have a ON/OFF switch to off it. Not sure whether it consume battery or not.
http://www.logitech.com/index.cfm/keyboards/keyboard_mice_combos/devices/4334&cl=roeu,en