Feature:1. HD LCD Display: Scientific calculators with HD LCD display shows clear data for your reading convenience.2. Sliding Hard Cover: Function calculator with sliding hard cover, sliding design to defend the keys from damage.3. Multiple Computing Functions: Multifunction scientific calculator has multiple computing functions to meet different computing needs, suitable for students.4. Dual Power Supply: Function calculator dual power supply to avoid the appearance of running out of power, 1000mAh capacity, long time battery life.5. ABS Material: Calculators made of ABS material, wear resistant and durable, not easy to damage, can be used for a long time.Specification:Item Type: Scientific CalculatorMaterial: ABSProduct Size: Approx. 17 x 9 x 3cm / 6.7 x 3.54 x 1.2inBattery: Coin Cell Batteryx1 (Ship with Inbuilt Battery)Battery Model: LR03Battery Capacity: 1000mAh.Package List:1 xScientific Calculator (Ship with Inbuilt Battery)1 x User Manual