Transparent Panel: Smart home volume controller features a transparent panel, providing a sturdy, durable, and elegant design. 7-Level Volume Adjustment: Equipped with a rotary knob for precise control, offering 7 levels of volume adjustment to meet various listening needs. Easy to Install: Simple wiring and straightforward operation make it a practical addition to any smart home setup. Multipurpose Use: Functions as a volume control, tuning switch, or background music switch for enhanced audio management. Wide Application: Ideal for use in conference rooms, classrooms, living rooms, hotels, and other residential or commercial spaces. Package Includes: 1 x Volume Control Switch, 1 x Holder Item Type: Volume Control Switch Material: ABS Output Power: 2x25W Impedance: 4-8Ω Sound SNR: >98dB Control Gear: 7 Levels