Chromatic tuner pedal for electric, acoustic guitar and bass. Innovative mini pedal tuner,small size. Bright LED display for reading the tuning information easily. Ture Bypass circuit design, no signal output in tuning state - Mute tuning. Easy to carry, superior shape. A fascination representative product among pedal tuner LED highlight screen, highlight display, clear and bright word Mute tuning mode, suppress the audio signal output. No any embarrassed weird voice 9V effect power supply is used to power the equipment Double stamp on the device, entering into adjustable A4 value range: 430-449HZ Aluminum alloy body, hard and firm Mute tuning LED screen Material: Aluminum alloy Adjustable A4 range value, approx. 430-449Hz Power Supply: DC 9V(not included) Colour:black Material:Aluminum alloy Size:41 x 41 x 43mm Package Contents: 1 x Pedal Tuner Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!