Safergo-Direct via Amazon offers its Safergo Neatest 1-Button Control Bluetooth FM Transmitter / 24-watt Dual USB Charger for $19.99. Coupon code "W9GEVVSS" cuts it to $9.99. Plus, Prime members receive free shipping. That's the lowest price we could find by $14. Features include Bluetooth 4.0, two 2.1-amp USB charging ports, and an 8-protection system. Deal ends December 30.