BTL-331 12 digit Dual Power Portable Calculator is a stylish and concise portable calculator. This dual powered calculator provides the basic functions with easy-to-press buttons.
BTL-331 12 digit Dual Power Portable Calculator is a stylish and concise portable calculator. Super compact the BTL-331 can fit in a briefcase, wallet, pocket, or purse and has the features you’ll need. The large 12-digit display is easy to read in any environment.
★Solar & Battery Dual Power Source
The basic calculator works on solar power and has a 1.5v battery (AA included) as a battery back up and has an automatic power-off.
★Main Functions
With 6 functions including addition, subtraction, fractions, percentages, and tax conversions this calculator is able to perform efficiently for everyone.
★Package Includes
1* BTL-331 Simple Calculator
1* Specification
If you have your own design to make, we can develop the new mould, as well as develop a new IC for the functions to fully meet the requirements. All the details on the calculator can be customized.
Package Details:
1. Are the battery’s already in the calculator?
Yes, the battery is already in.
2. Do the keys click when pushed or are they mushy/silent
The keys move cleanly and tap as they register. Definitely not a “mushy/silent” action
3. Is it solar powered?
It has “two-way power”, i.e., it is solar powered with a battery back up, so it works in any light. It is a very nice calculator.
4. Does it have a Back Button？
Yes. it has a back button, as well as an OFF button.
5. Does it auto power down when not in use?
Yes, it supports the Auto Power Off function, you can leave it and it will turn off automatically.
6. What size battery does it use?
1AA battery required.
7. Are the buttons hard plastic or soft rubber?
The calculator is a hard plastic one, but very comfortable.
