I have a 1$ USB Bluetooth dongle which works flawless with two WiiMotes however, I don't know if it will work with 3-4. You could buy one, just to check
CPU: [color=#333333]i7 2600k @ 4.5Ghz[/color]
GPU: [color=#333333]Sapphire Radeonn HD7950[/color]
Cooler: [color=#333333]Corsair H100[/color]
GPU: [color=#333333]Sapphire Radeonn HD7950[/color]
Cooler: [color=#333333]Corsair H100[/color]
