Connect it to a car that doesn't have Bluetooth functionality in its car navigation system, and you'll be able to use Bluetooth. I am selling it because I no longer use it. Product Description This FM transmitter supports heavy bass playback and wirelessly receives music from Bluetooth®-enabled smartphones, tablets, etc., allowing you to listen to it on your car stereo. You can easily enjoy "powerful heavy bass" with the push of a button. Frequency operation can be easily switched with a single button. Equipped with an automatic recognition function, it can charge at the fastest speed with optimal output. Wireless communication eliminates the need for troublesome wiring. It also supports hands-free calling. ■ Model Number: DON-11R-BK ■ Size (approx.): 50 x 96 x 37 (mm) ■ Wireless Method: Bluetooth Ver. 5.0 ■ Maximum Wireless Range: Approximately 6m radius (Class 2) ■ Supported Profiles: A2DP / HSP / HFP ■ Pairing: Multi-pairing, up to 8 devices ■ Frequency Settings (4ch): 88.3 / 88.5 / 88.7 / 88.9 (MHz) ■ DC Rated Input: DC12V / 24V ■ USB Rated Output: 5V 2.4A ■ Country of Origin: China