Microsoft Store offers the Soundstream Street Hopper 6 Bluetooth Speaker, model no. for $69.99 with free shipping. That's $50 off list and the lowest total price we could find. It features a rechargeable battery with up to 10 hours of playback, 6.5" active and passive radiator subwoofers, 2.5" speakers, USB, 2-band equalizer, and remote.