The Boss PSA-120S2 Adapter is specially designed to provide perfect power to all Boss metronomes, tuners and compact pedals. The PSA-120S2 is the recommended power supply for products including BOSS Compact and Twin pedals, ME-50/-20/-20B/-25/-80 Multi-effects, the DB-66/-88/-90 metronomes, DR-Series drum machines, FC-Series foot controllers, MC-202, SH-101, SP-202, TR-626 and all TU-Series tuners.*The BOSS PSA-120S2 follows the new 2016 US energy efficiency requirements. There is no other functional change from the original PSA-120S.
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