When I found out my wife was pregnant, I instantly looked to acquire a set of headphones that I could use so as not to disturb the sleeping baby. I had already purchased theMotorola MOTOROKR S9 Bluetooth Stereo Headphones, but those didn't work well when laying down, and they didn't do so great with blocking outside noises. I also had theSony MDR-RF925RK 900 MHz Analog RF Wireless Headphone, which were good at canceling outside noises, but produced so much static and whitenoise that they were useless.When I came across the S805 I went ahead and gave them a try. I'm glad I did. First, note that I would never use these to make phone calls. They can, but they are so big and bulky that I wouldn't even try. Walking around the house with these giant beasts isn't my idea of a good bluetooth talking device. What I use them for is to watch movies/anime and play the PS3.They are hooked up to my Yamaha HTR-5640 Home Theater Receiver using aSony Bluetooth Transmitter and Adapter for iPod and MP3 Players. Unless your receiver has Bluetooth built in, you'll need a transmitter. Just be sure it supports A2DP. I had theJabra Bluetooth Music Adaptor, but it didn't work with the S805 because it wasn't A2DP compliant.Overall, I love the quality of the connection: no whitenoise, no static. There is the occasional dropped signal, but that's easily and quickly restored. I purchased these in December of 2008, and in March of 2011 they still work like a charm.