Features:

Plug And Play -- Plug The Fm Transmitter Into Your Car Cigarette Lighter Socket For Power; Find A Blank Frequency For Your Car Radio And Keep The Fm Transmitter At The Same One; Pair Your Mobile Device With It Via Bluetooth.
Three Playing Modes -- Work With Bluetooth Enabled Devices, Sd/Tf Card, And U Disk; Support Mobile'S A2Dp Function, You Can Enjoy Music From Different Ways.
Aux Is Output - Means Connects To Car Stereo Via Aux Cable. And Not To Mobile Or Ipod.
Note: Fm Station On Device And Car Stereo To Be Set Same Frequency. If You Hear Hissing Sound Or Disturbance Change Frequency To Any Other Free Frequency.