TENEALAY RCA Audio Volume Controller, line Volume Control Box, Mini attenuator knob -RC11

Description: This RC11 box is a mini size line volume controller, you can adjust volume quickly without using the music player. Product design is pure volume level control, it is not affect sound quality or color added. (it has no amplification function) Very conveniently to control volume to get a comfortable listening level. Features: Compatible with many devices and music system: headphones/headsets, MP3 player, smartphone, PC computer, TV, amplifier,active speaker etc which have line out jacks Quality potentiometer and other components. Build in aluminium CNC chassis, looks nice and durable. With rubber feet on bottom. Connectors: 1 x RCA input 1 x RCA output Use instruction: No need power supply. Plug and play. Increase or Decrease volume by Turning the volume knob in front manually.