Four channel groups of wireless control from one knob Damaged or lost your quad encoder WVC-LITE / WVC / WVC-PRO knob? Grab a brand new unit. The quad knob pairs two stacked concentric encoders side by side: four independent rings, four channel groups, full command of a multi-zone system from a single control. Note: The wireless Knob is a controller, it does not operate as a standalone device! You need to pair it with a WVC (any version). Key Features Dual stacked concentric encoders: four independent rings, each controlling its own channel group Precision dual concentric encoders built for years of daily adjustment, with a push button on each knob High-quality aluminum housing that feels premium in your hand Main 128 x 128 OLED display with live volume, dB readout, amplifier temperature, supply voltage, battery level, and signal strength Dedicated secondary OLED readout showing all four channel group levels at a glance Long-range, encrypted AuralSync™ wireless link to your base station Live spectrum and oscilloscope views when paired with a WVC-PRO base station Rechargeable battery with USB-C charging, and the battery is user replaceable Automatic sleep with instant wake on press, plus over-the-air firmware updates Why You'll Love It Built for serious multi-zone systems. Left knob for the front, right knob for the rear, inner and outer rings split however your channel groups are laid out, with flexible per-ring assignment from the knob's menu. The secondary readout keeps all four levels visible at once, so a full-system adjustment never takes your eyes off the road for more than a glance. 📖 Documentation Full guides and troubleshooting at help.lf-audio.com/wvc: Knob Guide Channel Groups and Multi-Unit Control Firmware Updates Troubleshooting