Item Type: Volume Control Switch_x000D_ Material: ABS_x000D_ Output Power: 2x25W _x000D_ Impedance: 4-8_x000D_ Sound SNR: >98dB _x000D_ Control Gear: 7 Gears 1Transparent Panel: Smart home volume controller adopts transparent panel, sturdy, durable and beautiful. 27 Level Volume Adjustment: Volume control switch adopts rotary button, 7 level volume adjustment to meet your different needs. 3Easy to Wire: Volume control switch is easy to wire and operate. Practical smart home accessories. 4Multipurpose: Smart home volume control is suitable for volume control, tuning switch, background music switch. 5Wide Application: Smart home volume controller is suitable for conference room, classroom, living room, hotel, etc.1 x_x000D_ _x000D_ Volume Control Switch 1 x Holder