This speaker is the top model of the Drumfire, which already delivers quite a punch on its own. It provides pure HiFi acoustics with deep, controlled bass and crisp highs. The D-2 is the improved version of the D-1. It offers AirPlay 2, Google Cast, and Spotify Connect, along with even better sound than its predecessor. The D-2 is designed to fit elegantly into any home, wrapped in artificial leather, with solid aluminum details and a sturdy wooden housing. The multi-room function allows you to play the same music throughout the house. You can group and play, set left/right for stereo pairs, and choose to play all together or not. It's your choice. Multi-room sound and multi-user operation are available. The D-2 can be connected to the Drumfire subwoofer or another woofer via cable or wirelessly if it's a multi-room subwoofer. When you connect a subwoofer, the crossover of the D-2 changes, allowing the subwoofer to take over the bass. This way, you can play much louder. Streaming services available include Amazon Music, Deezer, iHeart Radio, Napster, Qobuz, QQ Music, Spotify, Tidal, TuneIn, VTuner, and many more via Google Cast and AirPlay 2. Six preset buttons provide easy access to playlists and radio stations.