Features 1.FLEXIBLE OPERATION: Volume control knob is adjustable in four positions, nonslip design, simple operation makes the sound adjustment more flexible. 2.LOSSLESS SOUND QUALITY: Wall mount volume control knob stabilizes the output and ensures that the sound quality is not affected. 3.SAFE AND DURABLE: Wall volume control is made of flame retardant PC material, fire retardant, safe and reliable, durable and long lasting. 4.SIMPLE WIRING: Volume control rotary knob adopts simple wiring design, convenient and quick, so that everyone can easily get started. 5.LARGE PLATE DESIGN: Volume controller adopts frameless large plate design, simple and fashionable, better integrated into the home environment. specificationItem Type: Volume Control Knob Material: PC Tuning: 4 Position Tuning Material: Flame Retardant PC Product Size: Approx. 86x86mm / 3.4x3.4in Power: 30WSpeakers PackageList 1 x VolumeControlKnob 2 x Screws 1 x ConcealedBox NoteAll data are measured manually, and there are certain errors in the measurement results.