I'm using it with the LG8500 Chocolate , It works great for music.. Everyone that I show it to goes oh that's nice then I have them listen and there like WOW. Then they ask where they can get one. But it does have its problem. I end up calling the last person dialed all the time since the big M on the side is a button that you can make calls with and hitting twice will cause it to dial the last dialed...bad and the price can from $129-$79 I bought it at anther store for 129 then returned it and got it off amazon for half the price and there where free songs with the one I got at amazon. I can not find anywhere that tell if there are different Ver.. of this unit but since some pictures have black not gray on the top there seems to be 3 or 4 different ht820. But think its worth if you are getting under $85.00