Welcome to our store！</br> 1、CARVING CRAFT: Wooden calculator is made of fine carving process, the numbers are engraved on the keys and will not disappear after long time use. 2、ERGONOMIC KEYS: This calculator adopts scientific large key design, which conforms to human habits, increases pressure sensitivity, and is comfortable to touch. 3、LARGE SCREEN: The 12 digit LCD screen that clearly displays large numbers is easy to read from a distance. Compact and beautiful, easy to carry. 4、DUAL POWER SUPPLY: This calculator is powered by both solar energy and built in battery. If it is not operated for 5 minutes, it will turn off the power automatically. 5、MULTIPLE APPLICATIONS: 18 buttons, very practical. This calculator is perfect for office, business, student, store, mall daily and home use. <p class="wang-edit-text"><p class="wang-edit-text"> Item Type: Calculator Material: Bamboo Wood Number of Keys: 18 Keys Production Process: Carving Operating Current: 1.5A Operating Current: 4μA Battery Type: 300mAh Lithium Ion Battery (Built in) <style> .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }</style> 1 x Calculator1 x Instruction Manual Satisfaction - Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactoryaftersalesservice</br>