and ultra lightweight construction for portability and easy handling. AUX interface for audio connections to devices such as mobile phones, navigation systems, MP3 players, and other compatible sources. Generous cable length to switch between a phone and an MP3 player without reconnecting. USB charging port supports powering the connected device. Compact, durable design with quality materials delivering reliable performance. Use scenarios In car: connect your phone or MP3 player to the car stereo via the AUX interface and use the USB port to charge your device while listening. On the road: route navigation or GPS audio through the AUX connection to the car speakers, while the USB port keeps your device charged. At home or office: connect portable audio devices to a speaker system via AUX for playback, with USB charging available for the connected device.