NIUNIU High-elastic rubber pad, enlarge the contact area to prevent the tuner from sliding, compress the instrument while protecting the surface of the instrument from abrasion 360 degree rotation, flexible adjustment, you can move as you want, 360 degree all-round rotation, more convenient to use Power saving function will automatically shut down without a button within 60 seconds, and lock the power Easily learn to tune, simple screen and numbers and letters, meanwhile, the tuning mode is more intuitive No battery provided Power mode:button battery quantity of delivery:1 piece (Package contents: Only the above package contents, excluding other products.) size:24*40*46mm (Reminder: The size is measured manually, please allow 1-2 cm measurement error) color:black colors (Due to different monitors and lighting effects, the actual color of the item may be slightly different from the color shown on the picture.)