Feature: 1. Folding desktop calculator with 112 steps check \u0026 correct, clear 12 digits display, easy to read. 2. Dual power supply--solar power and 1 * AAA back-up battery(not included). 3. Equipped with complete functions, such as Memory plus/minus key, Correction key, Mark up key, Check key, Auto replay key, Grand total key. 4. Soft \u0026 durable keys, comfortable for operation \u0026 long service life. 5. Compact size \u0026 exquisite design, portable and stylish. 6. Dual power supply--solar power and 1 * AAA back-up battery(not included), energy-saving and environmental-protecting design, user-friendly. 7. Compact size \u0026 exquisite design, portable and stylish. Great assistant for normal daily calculating, for student, business, office \u0026 home. 8. Compact size \u0026 exquisite design, portable and stylish.Great assistant for normal daily calculating, for student, business, office \u0026 home. 9. Soft \u0026 durable keys, comfortable for operation \u0026 long service life. Compact size \u0026 exquisite design, portable and stylish. 10. Great assistant for normal daily calculating, for student, business, office \u0026 home. Specification: Features: Folding desktop calculator with 112 steps check & correct, clear 12 digits display, easy to read. Dual power supply--solar power and 1 * AAA back-up battery(not included), energy-saving and environmental-protecting design, user-friendly. Equipped with complete functions, such as Memory plus/minus key, Correction key, Mark up key, Check key, Auto replay key, Grand total key. Soft & durable keys, comfortable for operation & long service life. Compact size & exquisite design, portable and stylish. Great assistant for normal daily calculating, for student, business, office & home. Specifications: Color: Black Type: Check & Correct Power Supply: Solar & 1 * AAA Back-up Battery (Not Included) Digit: 12 Item Size: 14 * 9 * 2cm / 5.6 * 3.6 * 0.8in Item Weight: 146g / 5.2oz Package List: 1 * Calculator 1 * User Manual(Chinese & English) Note: The battery is not included. Package List: 1 * Calculator 1 * User Manual(Chinese & English) Note: The battery is not included.