PT2 Bare Bones Intellitouch Tuner Clips anywhere on instrument and tunes using vibration. Unaffected by ambient noise, making it a simple task to tune up in a noisy environment. Unique, flexible clamp safely secures on to any surface. Made of a bone colored hard ABS plastic, recalibrates between 438, 440 and 442 only. Excludes backlight and carrying pouch.