Probably the best sounding Wi-Fi speaker created, ever. Great speakers learn no tricks. Enjoy studio quality Wi-Fi streaming with MS50A, a smart speaker without a microphone ensuring your privacy. Smart Touch Control Simply move your fingertips on touch command on top of the speaker to adjust the volume and switch songs Works with Alexa Use Alexa App or Amazon Echo devices to control the audio playback through your favorite music Apps. Multi-Room Music Pair two or more MS50A speakers to create a group by using Alexas multi-room system feature. Play music on multiple speakers simultaneously Microphone Free No built-in microphone helps protect your privacy. High-quality Sound Equipped with AP6265 chip, AMP, and DSP technology to build powerful tweeter and woofer without distortion. Wireless Stereo Setup Bring back the highly praised Edifier stereo sound stage by pairing two MS50A speakers with the Edifier Home App. You can enjoy every bit of the bookshelf speaker setup, without the hassle of wires. WIFI Access cloud based music streaming services like Amazon Music, Spotify, and more. BLUETOOTH Stay connected with your music from your phone, PC and other Bluetooth-enabled devices. AirPlay 2 Play directly from your iPhone, iPad, or Mac. Like your music playing on multiple speakers? Simply tap each Edifier Wi-Fi speaker to enable them and set the volume to your liking.Bluetooth Version 5.0 Frequency Response 52Hz - 18KHz SNR >= 85dB(A) Power Output Mid-base(25W) + treble(15W) Product Size 5.73 x 5.73 x 8.32 inches Wi-Fi 2.4GHz / 5GHz Product Weight 2.26kg Tweeter 19mm silk dome Woofer 4-inch(102mm) wool diaphragm