Pioneer XC-HM82K micro receiver. Class D amplifier (50W x 2 @ 4 Ohms, speaker impedance 4-16 Ohms) has many connections, this compact device lets you play audio from your devices and other media players. Stream Spotify, online radio, via WiFi, AirPlay, Ethernet, and Bluetooth. More Information: - USB or Aux-in plays audio from your Apple devices, smartphone, and other music players - WiFi connectivity for accessing internet radio and podcasts via VTuner, or streaming through Spotify - two 'line ins', and optical in (an optical cable is included) - stream via AirPlay wireless audio or Ethernet - built-in Bluetooth allows you to pair with compatible wireless devices - CD, FM, AM radio - Features bass/treble control, sound equalizer (Game, Classic, Pop, Vocal, and Jazz), and bass enhancer "P-BASS" - Pioneer Control App ready (iOS or Android) - subwoofer pre-out I've had this receiver for five years (manufactured December 2015) it's a quality audio equipment, treated well, kept clean, and it works and sounds great. There is no HDMI in, but I am sending PlayStation and TV audio to the receiver through the optical line in (optical cable included). I had it paired with Paradigm mini monitors and a Paradigm powered subwoofer.