Feature: 1. New design, intergenerational elegance and vintage, designed from traditional typewriter models. 2. High axis axle body, crisp sound, simple operation, continued the classic dot keycap design. 3. Rounded texture, and prcatical, made of ABS material, increase wear resistance and increase usage time. 4. Smile design of the floor mat, the smile design on the calculator brings you a good mood for the day. 5. 15° ergonomics design, effectively relieve eye fatigue in long-term use of the calculator. Specification: LOFREE Jelly Bean Mechanical Calculator, new design, intergenerational elegance and vintage, designed from traditional typewriter models. Features: New design, intergenerational elegance and vintage, designed from traditional typewriter models. High axis axle body, crisp sound, simple operation, continued the classic dot keycap design. Rounded texture, and prcatical, made of ABS material, increase wear resistance and increase usage time. Smile design of the floor mat, the smile design on the calculator brings you a good mood for the day. 15° ergonomics design, effectively relieve eye fatigue in long-term use of the calculator. Specifications: Material: ABS Plastic Color: Red, Blue, White (optional) Weight: Approx. 180g / 6.3ounce Battery: 1 * AAA battery, 1.5V 700mAh (NOT included) Size: 148 * 92 * 35 mm / 5.8 * 3.6 * 1.4in Package size: 180 * 120 * 50mm / 7.1 * 4.7 * 2.0in Package weight: 200g / 7.1ounce Package List: 1 * Jelly Bean Mechanical Calculator 1 * Manual Package List: 1 * Jelly Bean Mechanical Calculator 1 * Manual