The Behringer TU300 Chromatic Tuner is a full-featured guitar and bass tuner with a bright display that can easily be seen while on stage. It offers seven operating modes including Regular, Flat, Double Flat, and Chromatic. The reference tone is highly adjustable. Quality construction ensures signal integrity while in bypass mode. The TU300 is a quality guitar and bass tuner that won't take up a lot of room on your pedalboard while remaining highly visible on darkened stages. Multiple Tuning Modes Regular, Flat, Double Flat, and Chromatic modes for both bass and guitar are included in this versatile tuner. Tech Specs Pitch Calibration Range 438-447 Hz Connectors 1 x 1/4" Input jack 1 x 1/4" Output jack 1 x 1/4" Bypass jack Speaker Type None Power Supply 9 VDC, 100 mA regulated Battery Life Not Specified by Manufacturer Dimensions (WxDxH) 2.75 x 4.8 x 2.13" (70 x 123 x 54mm) Weight 0.73 lb (0.33 kg) Packaging Info Package Weight 0.935 lb Box Dimensions (LxWxH) 6.4 x 3.55 x 2.5"