Naim - Mu-So Reference Wireless Music System Stream Music From Virtually Any Source in Stunning Sound with Naim Mu-so Wireless Music System: Apple AirPlay, Universal Plug 'n' Play, aptX Bluetooth, Spotify, Internet Radio, & Multi-Room Capability Award-Winning Naim Mu-so Delivers 450 Watts Through Six Amps and 32-Bit DSP Inspired from Bentley-Made Design: Also Features Touchscreen Volume Dial and Innovative App Six 75-Watt Amplifiers, 32-Bit DSP Deliver Audiophile-Quality Performance Looks As Good As It Sounds, Features Two-Patent Pending Designs Dimensions (HWD): 4.8" x 24.7" x 10.1"