【Wide Range Tuner】 Tuning range is A0(27.5 Hz) ~ C8(4186 Hz). New fast precise strobe mode with +/- 1 cent accuracy 【Easy to See】The color and brightness of the specially adjusted LED beads match the mini LCD screen, which can be used on the large stage and outdoor performance venues without any problems 【Fast & Accurate Tuner】AFOT tuner pedal gives you fast and accurate tuning 【True Bypass Guitar Tuner Pedal】 True bypass, improved analog circuit, real signal, no loss of tune. No annoying pop and hum noises. 【NOTICE：Power Supply Not Included】 There is not power adapter included, you need to buy one. Color White Tuner Style Tuner Pedal Voltage 9 Volts Brand Name AFOT Manufacturer AFOT Model Number AFOT--LT--910 Controls Type Knob Signal Format Analog Hardware Interface 3.5mm Audio Audio Output Effects Tuner Warranty Description 1 year. Manufacturer Part Number AFOT--LT--910