OSALO Scientific Calculator 401 Function 2-line Display 10+2 Digits Solar and Battery Calculator with Slide-on Cover for Secondary School Black (OS 991MS 2nd Edition)
SKU: 13038118420

OSALO Scientific Calculator 401 Function 2-line Display 10+2 Digits Solar and Battery Calculator with Slide-on Cover for Secondary School Black (OS 991MS 2nd Edition)

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Description

OSALO Scientific Calculator 401 Function 2-line Display 10+2 Digits Solar and Battery Calculator with Slide-on Cover for Secondary School Black (OS 991MS 2nd Edition)401 Functions Scientific CalculatorWith 401 functions for fractions, matrix calculations, statistics, calculus, complex number calculations, equation calculation, standard deviation, vector calculation, permutations and combinations, Scientific Calculator covers most of the scientific functions that students from middle school through college will need to use in their courses and on exams. Reading instruction attached will help you know how to use and

  • 【401 Functions Scientific Calculator】With 401 functions for fractions, matrix calculations, statistics, calculus, complex number calculations, equation calculation, standard deviation, vector calculation, permutations and combinations, Scientific Calculator covers most of the scientific functions that students from middle school through college will need to use in their courses and on exams. Reading instruction attached will help you know how to use and find these functions.
  • 【Brightness Adjustment Function】The screen brightness can be adjusted by simple operation to get the best display effect, dimming to relieve eye fatigue, brightening to get clearer display results, to improve the calculation efficiency.
  • 【2-Line Scientific Calculator】Input expressions and arithmetic operations is more easy to read than traditional calculators. The 2 line display shows both input and calculation results,convenient for students to check the calculation process and results.
  • 【Dual Power Source Electronic Calculator】Solar and battery,double safe uninterruptible power,environmental protection and energy saving advantages.
  • 【Ultra-light & Portable】Weight: 4.97oz. (141g); Size: 164 x 80 x 17(mm)/6.4 x 3.15 x 0.6 7(inch); Material: ABS plastic. With slide-on hard case, convenient to carry it outside and hold it on one hand.
    • Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 13038118420

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    4.1 ★★★★★
    Based on 1576 reviews
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    A
    Verified Purchase
    Apple
    Alexandria, US
    ★★★★★ 5
    Good buy Pillowcases
    Color: 08 - Sage Green, Size: King (20" X 36")
    I bought these Bedsure king-size pillowcases from Amazon and overall I’m very happy with them. The first thing I noticed was how incredibly soft and smooth the fabric feels. They almost feel silky, which makes them very comfortable to sleep on. When you lay your head down, the material feels cool and gentle on the skin, which I really like. I also appreciate the zipper closure. It keeps the pillow securely inside the case and makes everything look neat and tidy on the bed. The zipper is hidden well and doesn’t feel bulky or uncomfortable. The only small downside is that the pillowcases are so smooth that the pillows can sometimes slide around or even slip off the bed a little. However, that’s really just because the material is so silky. Overall, I would still recommend these pillowcases. They are soft, comfortable, and feel like a nice upgrade compared to regular pillowcases.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 8, 2026
    A
    Verified Purchase
    Amazon Customer
    Massapequa, US
    ★★★★★ 5
    Very nice pillowcases
    Color: 06 - Beige, Size: Standard (20" X 26")
    These pillowcases are really nice. They're soft and wash well. I really like the pocket on the end. It makes your pillows look nice and neat. The price is good too.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 31, 2026
    S
    Verified Purchase
    ShelbbLC
    Lowell, US
    ★★★★★ 3
    Love the sheets but GOSH THEY STINK
    Color: 19 - Forest Green, Size: Queen (20" X 30")
    I have the dark green sheets and bought these for extra cases to match. I would give them 5 stars if it weren’t for the fact that they smell absolutely horrible. I am so surprised after reading reviews that more people don’t mention it?! Maybe it’s more prominent in darker colors but I have washed these now 3 different times even with scent beads and still hate the smell. I wish I could accurately describe what it smells like— it’s just not good and for some reason, body heat only exacerbates it and makes the smell even worse and I wake up feeling like a smell like the sheets… which isn’t a good thing. Besides that, I do really enjoy them. They feel great on your skin and I love the color. I wish the smell didn’t kill them so badly for me ☹️
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on June 9, 2026
    A
    Verified Purchase
    Amy
    Carnegie, US
    ★★★★★ 5
    Comfy soft pillow covers
    Color: 02 - White, Size: Queen (20" X 30"), Color: 02 - White, Size: Queen (20" X 30")
    Absolutely love these pillow cases! I bought 2 sets. After I received them & washed & dried them they did remain wrinkly. I just went ahead and put them on my pillows & the wrinkles went away. I continue to love the feel, coolness & comfort. Will definitely buy more.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 5, 2026
    L
    Verified Purchase
    Lisa Brown
    Grantham, US
    ★★★★★ 5
    Great soft pillow cases
    Color: 03 - Navy, Size: Standard (20" X 26")
    Pillow cases are beautiful and soft, great quality. I had to return them because standard were too small. I am going to order queen instead.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on June 9, 2026

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