VersionTech Univeral Bluetooth Wireless A2DP Car MP3 FM Transmitter Modulator Radio Adapter Handsfree Car Kit with Hands-Free Calling, Music Control, Mic, and Charging Port for iPhone 5S 5 5C 4S 4 iPod Touch iPad Air Mini 2, Android Smart Cell phone, MP3 Players and Other Devices
It pairs instantly with my LG G2 phone and sounds good in my orignal Ranger truck radio speakers, using iHeart as the music source. Have not tried the micro-SD slot.  The phone charger was NOT strong enough to charge my phone - a nonissue with me. A rather quiet modulated audio level going out, which made me to turn up my radio volume, even with phone bluetooth volume at max:  sounds good, but the radio becomes LOUD when you turn off the modulator.  The controls worked good, including a button advance to th