Etekcity via Amazon offers Prime members the Etekcity RoverBeats Unify Bluetooth Receiver, model no. 679113373587, for $25.98. Coupon code "BLUE7OFF" drops it to $18.98. Plus, prime members bag free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, it adds $6.74.) That's the lowest total price we could find by $18. It features a wireless range of 33 feet and works with most speakers including PC speakers, home stereo systems, and A/V receivers.