Stereo Bluetooth Phones under Rs. 20,000

Samsung SGH-D820 (Rs. 13,300)
The budget version of the 12.9 D900, the D820 has the slim, slider form factor, MP3/AAC playback, no FM radio, around 73MB memory with a microSD/TransFlash memory card slot, TV output and Bluetooth A2DPD stereo.

Samsung Ultra Edition 9.9 SGH-D830 (Rs. 17,500)
Samsung's RAZR competitor, the 9.9 is a little too big after being extremely slim and it doesn't have an FM radio tuner, but it gives you MP3/AAC playback support, a maximum of 80MB phone memory and also a microSD/TransFlash memory card slot, Bluetooth printing as well as stereo A2DP support. There's also TV output on this one.

These A2DP-supporting phones can be used with any A2DP capable headsets and devices such as the Plantronics Pulsar series and some Jabra products.

Pioneer has the DEH-P9800BT car head unit that also does A2DP, so you can stream music from your phone to your car audio system. By the way, Windows Vista also natively supports Bluetooth A2DP and AVRCP, which means, if you have a Bluetooth dongle (that supports A2DP), you can use your Bluetooth A2DP headphones with your PC as well!