Accurate and fast tuning with 1 cent precision. The easy-to-read Deluxe LED display guides clear tuning results. Upgraded analog circuit, real signal, no loss of melody. Working with most electric instruments works with instruments, including a seven-string guitar or a five-string bass. The sturdy structure is made of high-quality zinc alloy, durable and sturdy. Small size that saves a lot of space for your pedalboard. A good Deluxe TunerChromatic that is suitable for tuning a wide range. The LED warning light shows the operating status and the display shows clear tuning results. And it's easy to read the right tone. New high-speed precision strobe mode with +/- 0.1% accuracy. Enjoy your own and colorful life. Easy to useConnected to power and audio cable, Deluxe Tuner will enter bypass mode. Press the bypass switch to enter tuning mode. The operation shows black when there is no signature, the solmization indicator and precision tuning will be turned on. The blue indicator in the middle turns on when the tone is accurate. Range: 12Hz-4186Hz (C8)Input: 1/4 inch mono (impedance: 100K ohms)Output: 1/4 inch mono (impedance: 0 ohms)Power supply: DC 9V (negative in the middle)Operating current: 90mAWaga: 268g (with box)Manual display:1. Turn on the footswitch to the model, the indicator will turn on and be silent.2. The operation shows "-" when there is no signature in the model, the solmization rate, and the fine tuning with