Calculators Konnwei

Feature: 1. Application Scenarios: Desktop calculators are suitable for home, school, office or shop, and perfect for adults and students. 2. Memo Lock Function and Key Silence: The compact calculator more→keys feel comfortable in your hand and sound quiet when pressed, making them less likely to disturb others. The Lock key function saves your important notes and prevents accidental deletion. It also effectively performs 4 functions for financial, household and accounting assistance for mortgage calculations and tax conversions. 3. Dual Power Supply: The calculator is powered by disposable button batteries, one of which lasts a full year, and the desktop calculator also has a solar panel so you …