Specs:
GROM-MST3 (Full Edition)
USB/AUX/Bluetooth/Smartphone/iPod Integration to BMW 3 series BMW E90 E91 E92 E93
Compatible with select Opto Fiber Stereos
USB standard port
Two EXT ports for AUX-IN, Bluetooth, iPod, Android
Provides 5V charging via standard USB port
Bluetooth handsfree and wireless playback
Control over your iPhone and mobile phone