Digital Class D amplifier, 80 W. 2x3/4" tweeter and 5,25" woofer. Frequency: 50-20.000 Hz. Frequency transition: 2.500 Hz. Wi-Fi, - Compatible with Spotify Connect, Apple Airplay and Bluetooth®, RCA connector and 3,5 mm jack connector. Dimensions: (WxHxD): 166x320x180 mm