The effect is not bad. The reverberation tuning board of Changle Voice has a good effect, which can provide natural reverberation effect and has a wide adjustment range. Reverberation effect can be adjusted according to different needs. As a reverberation simulation device, the reverberation tuning board of Changle Voice simulates the reverberation effect of the traditional reverberation box, which has more functions than the traditional reverberation box and is more flexible in adjusting the reverberation effect.