ACCURATE & FAST: Experience fast tuning with 1-cent precision. EASY TO READ: Deluxe LED display provides clear tuning results. IMPROVED ANALOG CIRCUIT: Delivers real signal with no tuning loss. COMPATIBLE WITH MOST ELECTRIC INSTRUMENTS: Works with 7-string guitars, 5-string basses, and other standard electric instruments. SOLID CONSTRUCTION: Made of high-quality zinc alloy—durable, sturdy, and compact for pedalboard space efficiency. CHROMATIC TUNER: Suitable for a wide range of instruments and tunings. LED INDICATORS: Show operating status and provide clear visual feedback during tuning. PRECISE STROBE MODE: Accuracy of ±0.1%. EASY TO USE: Connect power and audio cable—the tuner defaults to bypass mode. Press the footswitch to enter tuning mode. When no signal is detected, the display shows “–” and solmization/fine-tuning indicators activate. A blue center LED illuminates 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 9V (center-negative) WORKING CURRENT: 90 mA WEIGHT: 268 g (with packaging) DIMENSIONS: 9.5 × 4.5 × 4.8 cm COLOR: Silver MATERIAL: Zinc alloy PACKAGE INCLUDES: 1 × Guitar Tuner Pedal 1 × English User Manual Note: Only the items listed above are included. Other accessories are not included.