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Avantree Support
Headphones
Quartet-Extra
Quartet-Extra
Quartet-Extra User Manual
Part 1. Connect Quartet to your TV / Audio Source
Part 2. Connect the Wireless Headphone and Transmitter Base
Quartet-Extra Product Overview - Buttons & Indicators
How to Use the Quartet Headphones Independently
How Do the Normal and Boost Modes of the Quartet Work?