Stream music wirelessly via Bluetooth from your smartphone. Bluetooth is a wireless communication technology that is both reliable and energy-efficient. With this technology, you can easily establish a wireless connection with iPods, iPhones, iPads, or other Bluetooth devices such as smartphones, tablets, or even laptops. This allows you to enjoy your favorite music as well as audio from videos or games wirelessly on this speaker. Simply connect your USB device to the USB port of your Philips device using the USB Direct mode and play your digital music directly through the Philips device. The bass reflex speaker system provides deep bass in compact speaker systems. The difference from conventional speaker systems lies in the bass reflex tube, which is acoustically tuned to the woofer to optimize the system's low-frequency roll-off. The result is deeper controlled bass and less distortion. The principle is that the air mass in the bass reflex tube resonates and vibrates like a conventional woofer. Combined with the woofer's response, the system enhances all low-frequency sounds and produces deep bass in a completely new dimension.