iPad shaped Solar Calculator: For Business, Corporate, and Personal use! Calculator Size: 240x190x15mm, various shape, size and design are available! Price & Quantity: 1000 minimum for solar calculator sound chips and customized calculators. Lower Prices for Larger Quantities! Function: 8-digits calculator with transparent keyboard without battery, which can only use in the sunshine or lights. Printing: Send us your art file as a PDF file - 300 dpi with 3mm color bleed. Solid color or full color printings are available. We will send you a proof prior to mass duplication. Lead Time: Please allow minimum 2 weeks after we approve art and sound files