The design of the angle directs sound from the woofers right to your ears, producing 70 watts of balanced quality tunes. Its 4” midrange/woofer speaker drivers create rich lows. Meanwhile, the treble units produce clear highs. Bluetooth and more Featuring Bluetooth 4.1, the R1850DB bookshelf speakers can be paired with any device. Simply sync your smartphone, tablet or computer and listen to your favourite music, videos or games. The latest Bluetooth 4.1 wireless technology is great for playing from multiple devices. Comprehensive controls R1850DB comes with a fully featured remote that lets you adjust the volume, switch inputs, mute the speakers and control Bluetooth connected playback, all from your fingertips. The design of the remote with its modern sleek feel puts the power in your hands. It is easy to use and fits right in the palm of your hand, providing the ultimate comfort.