Nulaxy’s car transmitter works with Bluetooth enabled devices like smartphones and tablets to wirelessly transmit audio through your car’s speakers. Its display will show incoming call & music information, and also features a USB charging port. Listed as a #1 best seller on Amazon, it currently averages 4.5 stars out of 5 from over 5,400 people (read reviews). The typical list price on Nulaxy’s KM18 transmitter is $36.99, but right now it’s discounted 53% to just $17.49. See this deal now on Amazon.