Get this Factory Refurbished ION Audio Tailgater Bluetooth Speaker System for $59 at BuyDig. Shipping is free and it comes with a free one-year extended warranty. This is $30 less than other refurbished models of this speaker. This drives up to 50 Watts of audio power and streams music from other Bluetooth devices such as tablets and smart phones. But it also has a built-in AM/FM radio and a USB power bank. It runs on a rechargeable battery and can run up to 12 hours. Plus, it comes with a microphone and can work as a portable PA system. There is no sales tax (except NJ).