Boss TU-12EX Chromatic Guitar / Bass Tuner

This successor to the legendary TU-12 provides BOSS famous needle/LED indicators for fast, accurate tuning. Other features include Flat Tuning of up to six half steps, ACCU-PITCH with an audible beep, a reference tone, a built-in microphone for acoustic instruments, and battery-saving Auto-Off.Boss TU-12EX Chromatic Tuner features: * Tuning Range: E0 (20.6 Hz) to C8 (4,186.0 Hz) * Reference Pitch: A4 (438 to 445 Hz) * Tuning Accuracy: ± 1 cent * Power Supply: Dry battery R03 (carbon) or LR03 (alkaline); (AAA) type x 2; DC 3V, AC adaptor DC 9V (PSA series; optional) * Current Draw: 12 mA * Expected battery life under continuous use (carbon): Approximately 15 hours (this figure will vary depending on the actual conditions of use) * Needle/LED indicators for fast, accurate tuning * Flat Tuning of up to six half steps * ACCU-PITCH with an audible beep * A reference tone * A built-in microphone for acoustic instruments * Battery-saving Auto-OffBoss TU-12EXC Chromatic Tuner includes: * Dry battery (R03 (AAA) ty...