【Pocket Size Calculator】This Pocket calculator weighs only 90 g and measures 13.5 x 9.8 x 2.3 cm. It is light and slim, and the size is only that of the pocket. 【Visualized Operation Symbol Display】When you want to calculate a number, it will express the symbol (plus, subtract, multiply, or divide) on the screen. It can help you see the operation steps when you operate continuously. 【Solar Power Calculator】The calculator uses high conversion rate solar panels,solar power can be used in well-lit areas.At the same time, we provide matching battery double safe uninterruptible power.The calculator will shut down automatically after 8 minutes without operation. 【ABS Engineering Plastic】This 12 digits calculadora is made of ABS high-strength engineering plastics, lightweight but durable. It can withstand the impact of falling from the height of the desktop several times. 【30°Angled Desktop Calculator】 The Screen of this desktop calculator is just opposite your sight, making all calculations easy to read. Separated big buttons, made of ABS plastic, match with your fingers’ curve, making your every press more accurate and work more efficiently.