Do you think this is a credit card at your first sight? Actually this is a solar power calculator. You feel surprised right? This solar power calculator uses solar power which is energy saving and environmental protection. This handy pocket credit card calculator works great without batteries.This is an environmental Pocket Calculator; The Best Calculator is made of high quality material, durable enough for long time using. At the same time, the Pocket Calculator has basic calculating function and can be used for daily calculation at home, in office and so on. The Solar Power Calculator does not need batteries, which will save energies. This Solar Power Calculator is portable for daily using. So what are you still waiting for?
This solar power calculator uses solar power which is energy saving and environmental protection
This handy pocket credit card calculator works great without batteries
The Pocket Calculator is designed as a credit card, which is small, thin and beautiful
This Best Calculator slips easily in a purse, pocket or backpack
This practical solar power calculator is ideal for travelers, accountants, students and bankers
Power Source: Solar
Size: 8.5 x 5.5cm / 3.3 x 2.2in (L x W)
Ultra-thin calculator for portable use. The calculator is designed as a credit card, which is small, thin and beautiful
Solar calculator is environmental protection and energy saving; It can slip easily in a purse, pocket or backpack
The Solar Power Calculator does not need batteries, which will save energies. This Solar Power Calculator is portable for daily using. So what are you still waiting for?
Size in Detail:
Color is random in delivery
How to Use a Solar Power Calculator:
Nearly every basic calculator has a set of solar panels built into it. Even so, these calculators usually come with a battery inside that actually powers the device. These panels help extend the life of the calculator by slowly recharging the original battery. The manufacturer's intention is to make the calculator last long enough that it gets replaced for a reason other than the battery, often being dropped and broken.
Use most solar powered calculators like you would any other calculator; direct exposure to light typically doesn't matter.
Recharge a battery powered calculator by leaving it in a bright location but out of direct sunlight.
Recognize when you have a true solar calculator. The numbers will fade when the light is blocked and there will often be a noticeable lag between pushing a button and its appearance on a calculator. When using a true solar calculator operate it in a bright location but still out of direct sunlight.
Clean off the panels occasionally to keep them working well. Dust, dirt and oils from your fingers can cause a significant amount of refraction, and the solar energy is lost. Wipe them off with a paper towel or even the end of a shirt, the plastic covering over the panels will protect them.
* 1 x Thin Mini Pocket Credit Card Solar Power Calculator