The VSX-921 meets all the popular AV receiver needs: 7.1 surround sound in HD, and a digital connection with your iPod, iPhone or iPad without dock. Additionally, it adds in easy-to-operate worldwide internet radio and network streaming via DLNA or Apple Airplay when you connect via LAN (adapter for wireless LAN available). LPCM, WAV, FLAC and other lossless formats are supported.
Compatible (free) smartphone/tablet apps include the advanced remote control app iControlAV2 and Air Jam, a Bluetooth-based social app.
The VSX-921 has 6 HD inputs including 4 x HDMI.