8 Digits Rubber Key Portable Calculator BTL-880 has a compact design, large LCD display, and large nonslip rubber keys. With the aid of the solar/battery dual power system, BTL-880 will work perfectly in almost every lit environment.
BTL-880 rubber key portable calculator is a basic portable for business professionals on the go. The BTL-880 is finished in a classic silver design and features an extra-large LCD display and durable rubber keys. Solar Plus Power, independent memory, and a profit-margin percent function make this calculator a perfect choice for business and home use.
★Main Functions
The simple portable calculator performs the major basic functions including addition (extra large key), subtraction, multiplication.
★For the Crowd
BTL-880 Simple Desktop Calculator is suitable for any businessman, worker, teacher, student, or anybody that needs to make any sort of calculation from time to time. Perfect for the office, school, or home use.
★Package Includes
1* BTL-880 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. Will this fit in a men’s wallet?
No, but it will fit nicely in a men’s dress shirt pocket.
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 plastic or rubber of the button?
Rubber
