Genie - Calculators are the ideal tool for your bills at school, work, home, or on the go due to their functionality, practical structure, and meaningful keyboard layout. Trust in years of experience and benefit from the proven quality of genius. - Practical calculator with large 8-digit display in a sleek and simple design - Keyboard: large plastic keys, easy to use and clean - Power source: dual power source (works with solar power with sufficient light and immediate switch to battery in low light conditions); battery included - Dimensions: Width 6.99 cm x Height 0.99 cm x Length 11.50 cm - Weight: 0.043 kg