The awesome Boss TU-3 Pedal It has several functions chromatic Guitar and Bass mode. It has had support for 7 string guitars and 6 string basses. This tuner will last a lifetime of playing. Tough as nails stomp box can be gigged a lot and only show minor scratches. Boss compacts are belt to last.

The low profile and durable design of the TU10 eliminates the problem of weak tuner heads that can easily break off where it attaches to the clip. The battery life on this device is amazing. It has been known to last years on one battery. The battery it uses is Panasonic CR 2032 3V. It works great on seven string guitars. Standard Boss functionality with Accu-Pitch, flat tuning up to five semitones.

The TC Electronic Polytune Clip is one of the best clip on tuners on the market. The stainless steel case has been sandblasted for grip and feel. The finish on your guitar will never be damaged because of the clip ons super soft rubber pads. The clips has one hundred and five leds compacted into a space that is twenty five percent smaller than pedal tuners.

I was trying a negative review... not sure I like.. This is the ST 8 tuner which is not an upgrade. It works great for a day or two. Then it will break. The plastic tabs holding the ball joint are so weak that if you tap on it they will snap right off. This tuner is messed up and will break as soon as you use it