Amazon offers the Mpow Box Bluetooth 4.0 Receiver for a low $18.99 after coupon code "NVRL9NRE" plus FREE shipping on orders above $49 or with Amazon Prime. Limited time offer.

You save 37% off the price! That's the lowest price we could find. This has a 4.3 out of 5 star rating with over 110 reviews. This wireless Bluetooth receiver essentially turns any soundbar or speaker system into a Bluetooth capable streaming device. Use this to stream music or media sounds from your smartphone or tablet. Plug the receiver into any A/V receiver, stereo system, or speaker through standard RCA or 3.5 mm jack.