Onkyo TX-NR535 5.2-Channel Network A/V Receiver (Discontinued by Manufacturer) 4K/60 Hz-Capable latest HDMI connections Terminals for Ultra HD Entertainment Built-in Wi-Fi Certified Wireless LAN Capability and Built-In Bluetooth Version 2 1 + EDR Capability with Advanced Music Optimizer DSP Technology to Improve Compressed Digital Audio Quality (Bluetooth Included) Internet Radio and Music Streaming Subscription Services Included (Tune In Radio, Pandora, SlackerTM, SIRIUS XM Internet Radio, Spotify, AUPEO!, and Deezer) Playback Compressed, Lossless, and HD Audio via Local Network and USB also Control and Stream with Free Onkyo Remote Streaming Apps for iPod touch/iPhone and Android Devices 65 W/Ch (8 Ohms, 20 Hz-20 kHz, 0 7% THD, 2 Channels Driven, FTC); 90 W/Ch (6 Ohms, 1 kHz, 0 7% THD, 2 Channels Driven, FTC) WRAT (Wide Range Amplifier Technology) H C P S (High Current Power Supply) Massive High Power Transformer