The TU-2 was Boss's flagship tuner from 1998 to 2009, and it remains a trusted choice for players who want fast, accurate tuning in a rugged stompbox. With multiple tuning modes and a bright LED display, it's built for visibility and simplicity—whether you're on stage or in the studio.

• Chromatic tuning with support for guitar and bass
• Easily drop-tune or set to your preferred pitch with flat tuning modes and adjustable reference pitch (A4 = 438–445 Hz)
• Tuning range: C0 (16.35 Hz) to C8 (4186 Hz)
• Tuning accuracy: ±3 cents
• 11-point LED meter with stream and cent modes for visual feedback
• Mute/Bypass switch for silent tuning
• 7-segment LED display for note and string indicators
• Input, Output, and Bypass jacks for flexible signal routing
• Powered by 9V battery or Boss PSA adapter
• Dimensions: 70 x 125 x 55 mm Weight: 420g

This unit is in good working condition with only light cosmetic wear. The LED display is bright, the footswitch is responsive, and the enclosure remains solid. A dependable tuner that's earned its reputation.