Item : B000WGJ71U Customer Reviews Works Flawlessly by .. Steven Jaworski () Korg CM-100L Tuner Clip This is one of my best recent purchases. I ordered this clip after buying numerous tuners that did not work well with acoustic guitars. This simple clip works well on all of my acoustic guitars and works as well as better than plugging in my electric guitars. If you have a Korg tuner and an acoustic instrument, you should get this! Great product by .. Ojibwas (H.B. Ca. USA) I use to use the Matrix tuner pick-up but after a while the suction cup on the tuner pick-up will wear down to where it would not stay on the the pick guard any more.I was a little pessimistic about this Korg tuner pick-up since you place on the top end of the tuner headstock,but it works great on picking up the sounds of the strings to give a good tune up. I am very pleased on its performance and I am sure it will last a long time. Simply put, it works by .. S. Smith (West Chester, Pa United States) Your looking at this product because you have a great, true acoustic guitar: one without electronics installed. You are also probably frustrated because your electronic tuner's mic picks up ambient noise and makes it difficult to tune. If you have a relatively decent tuner but it takes too long to tune due to ambient noise, this device works and will ease 90% of the difficulty. It is a contact mic, NOT an acoustic mic, and clips unto the very top of the guitar head, past the tuners. PS: If you do not have a decent electronic tuner, this is a great one @ $25.00: "Korg TM-40 Large Display Digital Tuner and Metronome". The Metronome is annoying (electronic click clack), but the tuner is great. Simple, works very well by .. P. Brodersen (Oklahoma) I bought this to see if it helped in noisy environments without needing a breakout box or other DI box with effects/tuner output. It works extremely well, is quite compact, and gets my highest recommendation. Inexpensive improvement in tuner ease.