Widely Used: Including precise cutting of wood angles in the woodworking industry;Accurate control of tire angles in the automotive repair industry; precise positioning of machine tool working angles in mechanical machining. and Sturdy: This product is made of sturdy and ABS material, with a compact structure, light weight, and easy to carry and use. The four sided magnetic and can easily adsorb to metals. Battery Capacity: This product comes with a built-in rechargeable lithium battery with a capacity , making it easy to meet daily usage needs. Accurate measurement: The accuracy of this product is 0.2 , and the display resolution is 0.05 . Measurement range: 4 x 90 and 2 x 180 . It has a Data Hold function that freezes the currently displayed values during the measurement process, making it convenient for users to record or view. Beep notification: This product has a built-in beep notification function, which emit a rapid beep when the following standard angles are detected: 0 , 30 , 45 , 60 , 90 . Within 1 of the standard angle(Excluding negative angles), emit a slow beep sound as a gradual reminder. Please note: There may be slight color difference or discrepancy in the actual product, which does not affect the use, please don't mind, thank you! Color: As Shown Material: ABS Package Contents: 1Pcs x Digital angles gauges Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.