Description from Woodbrass :
Designed for orchestral instruments, these clip-type tuners feature 100-hour battery life and a color LCD. KORG's clip-type tuners can be attached directly to your instrument for easy tuning. The new lineup includes the AW-LT100M which supports a variety of orchestral instruments, the AW-LT100T which is optimized for trumpet and trombone, and the AW-LT100V which is designed specifically for violin and viola. The AW-LT100M / T / V achieve an amazing battery life of approximately 100 hours using a single AAA battery. The body is lightweight, and triangular shuttle switches allow for intuitive operation. In a first for clip-type tuners for orchestral instruments, these tuners feature a color LCD that ensures excellent visibility. Each of the three models in this lineup is equipped with the optimal type of clip and a dedicated tuning mode, giving you the best possible tuning experience for your orchestral instrument. Long battery life; a single AAA battery provides 100 hours of operation. Even lighter in weight, in spite of using a AAA battery. Bright color LCD ensures excellent visibility. Switchable between two types of meter speed, fast and slow. The AW-LT100M is equipped with a large clip that supports a variety of orchestral instruments. The AW-LT100T is equipped with a small clip that s optimized for trumpet and trombone. The AW-LT100V is equipped with a dedicated clip and dedicated mode for violin and viola. Easy operation with left/right shuttle switches. Calibration, auto power-off, and memory backup functions.