ACCURATE & FAST tuning with 1-cent precision. EASY TO READ deluxe LED display shows clear tuning results. Improved analog circuit delivers real signal with no tuning loss. COMPATIBLE WITH MOST ELECTRIC INSTRUMENTS, including 7-string guitars and 5-string basses. SOLID CONSTRUCTION made from high-quality zinc alloy—durable, sturdy, and compact for pedalboard space efficiency. CHROMATIC TUNER suitable for a wide tuning range. LED INDICATORS show operating status and tuning accuracy. FAST, PRECISE STROBE MODE with ±0.1% accuracy. EASY TO USE: Connect power and audio cable to enter bypass mode; press footswitch to activate tuning mode. When no input signal is detected in tuning mode, the display shows “–” and solmization/fine-tuning indicators illuminate. A blue LED in the center lights up when the note is in tune. TONAL RANGE: 12 Hz – 4186 Hz (C8) INPUT: 1/4-inch mono jack (impedance: 100 kΩ) OUTPUT: 1/4-inch mono jack (impedance: 0 Ω) POWER SUPPLY: DC 9 V (negative center) WORKING CURRENT: 90 mA WEIGHT: 268 g (with packaging) DISPLAY INSTRUCTIONS: 1. Press footswitch to enter tuning mode—the indicator illuminates and audio mutes. 2. When no signal is present in tuning mode, display shows “–”, and solmization/fine-tuning indicators light up simultaneously. 3. The center blue LED illuminates when the note is accurately tuned. 4. In bypass mode, the tuner is inactive and no display appears. COLOR: Silver MATERIAL: Zinc alloy DIMENSIONS: 9.5 × 4.5 × 4.8 cm PACKAGE INCLUDES: 1 × Guitar Tuner Pedal 1 × English User Manual Note: This package includes only the items listed above.