【Irregular Highly Feedback Keys】Its keys are special and different from normal, make you have different touch feeling in different keys, help you recognize what you pressed. Normal-use "+" and "=" are magnified, so easy to read them. Please kindly know that this is not quality problem. If you mind this, we would suggest you another style OS-6815 of us. Welcome to check it in our shop.
【Visualized Operation Symbol Display】When you would like to calculate the number, it will express the symbol (plus, subtract, multiply or divide) on the screen. It can help you seeing the operation step when you operate continuously.
【Dual Power】The calculator features solar panels with a high conversion efficiency, allowing it to harness solar energy in brightly lit environments. Additionally, it comes with a compatible battery (including one AAA battery) for added safety and continuous power supply. The device is programmed to power down automatically after 8 minutes of inactivity.
【Ergonomic Angle Display】When you put the calculator on the desktop,the 30° large display is just opposite your sight,more clear than a horizontal display. Big size and “click” sense of press button make your every press more accurate,work more efficient.
【ABS Engineering Plastic】This calculator is made of ABS high strength engineering plastics, light weight but durable. It can withstand the impact of falling on the height of the desktop for several times.