How many move controllers can you use for one motion sensor?

I currently have the motion sensor, 2 move motion controllers and 1 navigation controller. Can I buy 2 more move motion controllers to use on my system for 2 player action?How many move controllers can you use for one motion sensor?http://search.yahoo.com/search;_ylt=A0oG7mCqgBZN3R4BHSpXNyoA;_ylc=X1MDMjc2NjY3OQRfcgMyBGFvAzAEZnIDeWZwLXQtNzQyBGhvc3RwdmlkA01CelJXVW9HN3Y2V1BnTTVUUlhhbEFhOEtTTFdwazBXZ0tvQUJTWHQEbl9ncHMDMARuX3ZwcwMwBG9yaWdpbgNzcnAEcXVlcnkDbWFueSBtb3ZlIGNvbnRyb2xsZXJzICAgICAgICAgIFNpdGU6ZnVsbC1mcmVlLWRvd25sb2Fkcy5jb20Ec2FvAzEEdnRlc3RpZANWSVAwMjE-?p=many+move+controllers++++++++++Site%3Afull-free-downloads.com%26amp;fr2=sb-top%26amp;fr=yfp-t-742