Bought this used and installed an IR module. Recently uninstalled the module and restored the TU-2 to the original form. My Tech inspected the soldering work and gave it the thumbs up.

Selling to raise money for a new instrument.

Manufacturer Description:

The BOSS TU-2 Chromatic Tuner incorporates BOSS' world renowned TU-Series tuner technology into an ultra-convenient stompbox design. For the first time ever, guitarists and bassists can now tune their instruments with unrivaled accuracy and an unmatched tuning range--with just a single stomp.

• BOSS world-renowned TU-Series tuner accuracy in a convenient stompbox design
•  Mute/Bypass select for silent tuning with a single stomp
•  11-point LED indicators and new "stream" meter display tuning discrepancy via speed and direction of LEDs (speed of LED movement gets slower as pitch becomes more accurate)
•  7-segment LED displays string and note names, easily visible on dark stages
•  Seven easy tuning modes include Chromatic, Guitar Regular, Guitar Flat, Guitar Double Flat, Bass Regular, Bass Flat, Bass Double Flat
•  Tuning mode setting and display style choice stored in memory
•  Adjustable reference pitch from 438 to 445Hz
• 8-octave tuning range--the widest in its class
• Footswitchable Tuner Off mode preserves battery life by disabling LEDs