Electronic Desktop Calculator with 12 digits Large Display Battery or solar power supply Office

Profit margin calculation,Quick and easy tax calculation,Square root, sign change, and memory keys,Attractive metallic design Dual power: Solar-powered calculator with battery backup and auto-off can works even in the dim light for energy savings.: Solar and battery, solar function works even in the dim light Convenient: Ergonomic design comfortable button, wide keyboard with raised keys and increased pressure sensitivity Durable:Easy to carry, perfect choice for office business and home use more preferential