SKU:QS2130; Manufacturer:Sharp Electronics; Manufacturer Part Number:QS2130; Brand Name:Sharp; Product Type:Simple Calculator; Length In Inches:8.70; Height In Inches:1.30; Width In Inches:7.70; Color:Greys; Depth:6.9 ; Weight (Approximate):10.24 oz; Recycled:No; Power Source:Solar; Versatile twin-powered calculator with adding machine logic. Solar powered with battery backup prevents memory loss and keeps calculator running in all lighting conditions. Easy-to-read display with automatic three-digit punctuation. Auto power off after seven minutes. Power Source(s): Battery; Solar; Display Notation: Numeric; Number of Display Digits: 12; Memory: 4-Key/2 Sets.