4 x 15W Power Output/ Google Assistant Built-In/ Hands-Free Voice Control/ Chromecast Built-In/ 24 Bit/96kHz High Quality Sound/ Multi-Room Playback Across Speakers That Have Chromecast Built-In/ 2.4/5GHz Wi-Fi Connection Network Support/ Wireless Bluetooth Streaming/ 2-Way Acoustic Design/ 55Hz–22kHz (-6dB) Frequency Response/ Black Finish