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The BE-5M is similar to the BE-5 but has programmable memory in addition to the functionality of the BE-5. It has the same 4 effects that the BE-5 has: compressor, analog overdrive/distortion, digital delay, chorus. It also has a built in noise suppressor. The BE-5M can store up to 8 patches. Each patch stores effect on/off status, effects loop status and output level.