Bluetooth® speaker pair V4.0 and apt-X for better transmission and sound quality. Digital Class D amplifier: 2x50 W. Tweeter: ¾" textile tweeters. Long excursion woofer: 4,5". Frequency range: 45-25,000 Hz. Crossover frequency: 2.800 Hz. Aux input in 3,5 mm stereo jack format and 2 TOSLink optical inputs for digital audio connections, USB connection for charging mobile devices and subwoofer output. Dimensions (HxWxD): 220x150x195 mm. Available in white and black. With remote control