BigDeals via eBay offers the BlackBerry Seatbelt Bluetooth Speaker, model no. ACC-52983-001, for $11.99 with free shipping. That's a buck under our September mention and the best price we've seen. (It's a current low by $2.) It features a microUSB port, 3.5mm port, volume and music controls, microphone, and the ability to connect to multiple devices at once.