Who says you can't get a good Bluetooth speaker for under $50? Right now, Inateck's having a sale on their MercuryBox Bluetooth Speaker. Normally it goes for $54.99, but with a promo code you can get it as low as $42.99. It features Bluetooth 4.0, as well as IPX5 waterproofing and 1800mAh battery inside to keep you going all day long.
You can pick up the Inateck MercuryBox Bluetooth 4.0 Speaker right now for just $42.99 using the promo code PVR6K4CG. It's currently the number one selling Bluetooth speaker on Amazon with an average of 4.3 stars out of 5, from Amazon reviewers.