Features:

• A compact pocket size calculator for general use, perfect for carrying in pants pockets or small bags for calculating all your daily mathematical equations including calcutating tax amount.
• Flat LCD display showing up to 8 numbers at a time. The flat design is great for storing in a pocket.
• Solar powered with 1 x LR1130 battery as backup, calculator can be used both during the day and night. Battery is secured with child-safe lock. Operating time is approximately 18 months with 1 hour of daily use, using the alkaline battery only.
• Storing the value of previous 3 equations in memory.
• Tax value can be set in the calculator and retained until the value is manually changed. Tax key can help you with easily adding or removing tax from a number. Great function for price calculation while shopping.
• To calculate certain percentage of a number e.g. 100 + 10% gives you 110. Great function for calculating before or after tax amount of a certain item.
• The square root of a number is a value that when multiplied by itself equals the original number. Great for jobs like architects, carpenters and engineers.
• Change the result of calculation to positive or negative value.

• The calculator powers off automatically after approximately 7 minutes to save energy and prolong battery life.
  

Specs info:

• Calculator Types : Pocket Calculators
• Display : 8 Digit LCD display
• Dimensions (WxHxD) : (General Information) Dimensions (WxHxD): 76 x 23.2 x 120 millimetre millimetre
• Power Source : Solar / LR1130 x 1
• Memory : 3
• =Tax/-Tax Keys : Yes
• Percentage : Yes
• Square Root : Yes
• Sign Change : Yes
• Auto Power Off : Yes