All Bluetooth devises are compatible with the PS3.
To set it up, go to Accessory Settings. Once your there, hold down the big button on your bluetooth device until it forms a solid colour instead of a blinking one (mine would go a solid red ring instead of a blinking green/red). After that, you get your PS3 to find it while its in that solid light stage. That's how it syncs up. From there it should be set and you can test it by staying in accessory settings and playing around with the voice changer.
Hope that helps.