Adesso CD-2776B Premium Commercial 12 Digits Basic Calculator (Black) - Large Display, Angled Display, Easy-to-read Display, Dual Power, Auto Power Off, Non-slip Rubber Pad, Backspace Key, Durable - 5" - 12 Digits - LCD - Battery/Solar Powered - Battery Included - 1 - LR44 - 1.5" x 5.5" x 7" - Black - Desktop: