Two-way, active digital speakers for Hi-Res stereo audio featuring custom design by Sir Terence Conran. Can be used either wired (to support up to 96kHz/24bit signal) or wirelessly. Features Kef's Uni-Q drive unit and the Music Integrity Engine audio processing to correct phase distortion and time delay. Apple AirPlay 2 enables multiroom streaming from your Apple device. Spotify Connect and TIDAL built in. Connect to your Wi-Fi or use Bluetooth to stream from the cloud, your phone, NAS drive or computer. Connects to a TV via an optical cable. Controlled using Kef app for Android or iOS.