Dual axis accuracy and Type C recharge: Enables precise angle measurements on two axes, with a convenient Type C rechargeable port for charging anywhere. Magnetic attachment feature: A strong magnet allows secure attachment to various surfaces, enabling stable, hands measurements. Energysaving automatic shutdown: Automatically powers down after 3 minutes of inactivity to conserve battery life, while retaining data for quick resume. Easytoread display: Large LCD with backlight ensures clear visibility of measurement values in all lighting conditions. Use scenario: In woodworking or cabinetry, quickly verify shelf angles, door alignment, and miters to ensure square joints and accurate installations. Use scenario: During metal fabrication or machine setup, attach the protractor to metal fixtures with the magnet and verify component angles during assembly or alignment tasks. Use scenario: Onsite renovations or installations, check angles and poses for precise placement of fixtures and fasteners, with reliable readings even in varying lighting and environments.