OtiumDirect via Amazon offers its Otium S06 3-in-1 Wireless Bluetooth FM Transmitter Car Adapter for $16.99. Coupon code "LQ28U27O" cuts it to $12.74. Plus, Prime members receive free shipping. That's $4 off and the lowest price we could find. It features an LED battery voltage display, two USB charging ports (with one supporting data transfer), cigarette lighter socket, and built-in microphone. Deal ends February 16.