Usage Tips:Features: 3 in 1 design, metronome + tuner + tone generator. Small and exquisite appearance, convenient to carry. Professional and easy to use. Built-in microphone pickup and external pickup clip. Large display screen, displays clearly. Accurate beating and adjustable volume. Built-in lithium cell, supports long time use. Foldable support stand is convenient to use. Suitable for every instrument, especially for guitar, bass, Violin and Ukulele. Suitable as a gift to your friends, family or others. Specifications: Brand: MUSEDO Model: MT-41 Material: Plastics + Electron Power Supply: Built-in Lithium Cell (Included) Package Size: 240 * 120 * 40mm / 9.45 * 4.72 * 1.57in Package Weight: 130g / 4.58ounces Note: 1.Due to the different display screen and light effect, the actual color of the item might be slightly different from the color showed on the pictures. 2.Please allow a little measuring deviation due to manual measurement. Package List: 1 * Guitar Tuner 1 * Pickup Clip 1 * USB Charging 1 * User Manual