Denon AVR-S660H 5.2-Channel Network A/V Receiver - Manual (Page 60)

Listening to audio on Bluetooth headphones
You can listen to audio playing through the MAIN ZONE of this unit on Bluetooth headphones.
Output audio from connected speakers and Bluetooth headphones simultaneously, or only using Bluetooth headphones.
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(Output Mode: Bluetooth Only) (Output Mode: Bluetooth + Speakers)
Contents Connections Playback Settings Tips Appendix
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Front panel Display Rear panel Remote Index