The product works very well and very precisely, as Pluged unplugged. Use it mainly at gigs (big band) where you have to quickly tune in between. Use it for bass guitar, acoustic guitar, electric guitar, but also our horn section comes so well clear. Here the unit works very quickly from rash. What in my previous products unfortunately was not the case. Above all, I must praise the service from the seller, it was with the first delivery a little problem with the post office, here was excellent and responded quickly from part of the seller. Price-performance service, very good.