Logitech Wireless Speaker Adapter compare (Bluetooth wireless audio receiver)

The Belkin Bluetooth Music Receiver is a cheap and easy way to add wireless audio streaming to any powered speaker system or audio component with a spare input.

The Rocketfish Universal Wireless Rear Speaker Kit can convert most brands of surround speakers to cordless operation for less than $100.

For cars with an auxiliary input but no native Bluetooth, the GoGroove SmartMini Aux is an effective means of adding both hands-free call capability and audio streaming from a smartphone.