Rowin/MEC Tuner Features: Chromatic tuner pedal for electric, acoustic guitar and bass. True bypass circuitry allows the signal going straight from the IN to the OUT. Bright LED display for reading the tuning information easily. Mini size and metal case, very durable and easy to store. Specifications: Material: Metal Tuning Range: 12Hz-4186Hz(C8) Input: 1/4" Monaural Jack (Impedance: 470 Ohms) Output: 1/4" Monaural Jack (Impedance: 100 Ohms) Display: LED Screen Power Supply: DC 9V Item Size: 9.5 * 4 * 5cm / 3.7 * 1.6 * 2in Item Weight: 180g / 6.4oz Package Size: 12 * 6.3 * 6.5cm / 4.7 * 2.5 * 2.6in Package Weight: 255g / 9oz Note: The power adapter is not included. Note: Power supply not included. Please use the 9V power adapter whose polarity is negative center otherwise, the product may not work properly. Package List: 1 * Effect Pedal 1 * User Manual(English & Chinese)1 * Year warranty through our store No Duty to Canada and USA FAST USA Shipping (typically about 4 days) Ships from Canada