Dave, with 4imprint 17 years.
Be free from batteries! Solar powered calculators have a sunlight-sensitive strip that transforms light into number-crunching power. Calculator styles run the array from sleek and simple to full-featured (think: built-in business card holder or adhesive flag set) to keep their interest in your imprint. They’re great for banks and credit unions to promote services or financial literacy. Or, calculator business card holders make great networking tools as tradeshow giveaways!