D I Boxes (Alfrick WR6)

Two used Behringer D I, (direct injection), boxes used between guitar or microphone and amplifier for a safer connection to prevent electric shocks and possibly prevent an impromptu performance of the Fifty Cycle Samba due to a faulty microphone or stand and a suspicious earth within a building. They will work from a 9 volt battery or phantom power. I am passing these on because I can no longer play my guitar.