| 摘要 |
The present invention relates to a portable music accompaniment set-top box. The set-top box can be manufactured in a small size, and is thus easily carried, and at the same time, the set-top box comprises a plurality of microphone inputs and headset outputs to enable multiple users to use the same regardless of time and place. According to the present invention, the set-top box is interconnected to a smartphone to provide a karaoke service by using various accompaniment sources, and an effecter volume for a voice signal is easily adjusted through simple operation of an adjustment knob. According to the present invention, the set-top box includes first and second buttons for turning on/off the effecter, so the effecter is promptly activated or deactivated through simple operation of the first and the second buttons. Moreover, the set-top box includes light emitting units to turn on light depending on activation of the effecter, so a user can recognize the activation of the effecter according to turn-on of the light emitting units. |
