Channels:2(2.0) Maximum Power Per Channel:NO POWER Working voltage:DC 5V PCB size:41*47mm 0-99 effect type: 00~02 small hal, 03~05 medium hall, 06~08 large hall, 09 church, 10~12 small room, 13~15 medium room, 16~18 large room, 19 hal,84~85 Reverb+phase shift, 20~26 with metal acoustic reverb, 27~29 Spring reverberation, 30~35Reverberation door, 36~39 Reverse reverb, 40~43 Early reflection, 44~47 Atmosphere effect, 48 stadium, 49 Ambient effect FX, 50~58 Delay 59 , 60~65 chorus, 66~69 Flange, 70~73 Phase shift, 74~79 Tone, 80-81 Reverb+chorus, 82~83 Reverb+chrome, 86~87 Reverb+tone, 88~89 Delay+reverb, 90 Delay+reverberation gate, 91 Delay+reverse reverb, 92~93 Delay+chorus, 94~95 Delay+chrome, 96~97 Delay+phase shift, 98~99 Delay+ position Color:blue Material:plastic+metal Package Contents: 1* Reverberation Board 1* Control Board Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.