Review: Logitech's Z606 offers 5.1 surround & Bluetooth at a low price, but not much more | AppleInsider
A5+ Wireless Speaker System (Refurbished) — Audioengine
Amazon.com: Kanto YU4MB Powered Speakers with Bluetooth and Built-in Phono Preamp | Auto Standby and Startup | Remote Included | 140W Peak Power | Pair | Matte Black : Electronics
Z407 Bluetooth Computer Speakers with Subwoofer | Logitech
Logitech Z906 5.1-Channel Satellite Surround Sound Speaker System (6-Piece) Black 980-000467 - Best Buy