Description
Reviews
| Brand | - |
| Category | Stationery, Educational Electronics & Office Supplies / Calculators |
| Origin | - |
| Brand | Deli |
| Model Number | TE28 (SJJF-1) |
| Display Type | Large LCD with 12 Digits |
| Voice Feature | Real Human Pronunciation in English |
| Power Source | Dual Power (Solar + Battery) |
| Key Material | Soft-Touch Plastic |
| Dimensions | 6.5 x 4.8 x 1.2 inches |
| Weight | 7.2 ounces |
| Color | Black and Silver |
| Warranty | 1 Year Manufacturer Warranty |
Anonymous
Mar 25, 2026
Rating: 5/5
Excellent visibility and sound
As someone with slightly impaired vision, this calculator is a blessing. The numbers are massive, and the clear human voice confirms my calculations. Highly recommended for seniors or anyone who wants extra confirmation.
Anonymous
Mar 22, 2026
Rating: 5/5
Perfect for my accounting tasks
The voice feature is a game changer. It reads out every number I type, which helps me catch errors immediately during long data entry sessions. The display is huge and easy to read even in low light.
Anonymous
Mar 14, 2026
Rating: 5/5
Sturdy and reliable
Been using this for three months in my small business. It feels very durable, the keys have a nice click, and the solar backup means I rarely need to change batteries. The voice pronunciation sounds very natural.
Anonymous
Mar 13, 2026
Rating: 4/5
Good value for money
Does exactly what it says on the box. The voice is clear and not robotic. I deducted one star because the stand angle is fixed, but overall it's a great purchase for the price.
Anonymous
Mar 11, 2026
Rating: 5/5
Best calculator I've owned
The combination of the large screen and the voice output makes complex calculations much less stressful. It's become an essential part of my daily workflow in the finance department.
Anonymous
Mar 10, 2026
Rating: 4/5
Great tool, slightly loud
I love the accuracy and the large buttons. My only complaint is that the volume cannot be adjusted, so it can be a bit loud in a quiet office environment. Otherwise, it's a solid calculator.
Q: Is the voice available in languages other than English?
A: No, this specific model (SJJF-1) only supports English voice pronunciation. Other models may support different languages.
Q: How large are the digits on the display?
A: The display features 12-digit capacity with extra-large characters designed for easy readability from a distance or for users with visual impairments.
Q: Can the voice volume be turned off or adjusted?
A: The volume can be toggled on or off using the dedicated switch on the side, but there is no intermediate volume adjustment setting.
Q: Does it have a memory function to store previous calculations?
A: Yes, it includes standard memory functions: Memory Plus (M+), Memory Minus (M-), Memory Recall (MR), and Memory Clear (MC).
Q: What type of battery does this calculator require?
A: It requires two AAA batteries, which are included in the package for initial setup. It also has a solar panel for auxiliary power.
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