Sharp EL377MB ( SHREL377MB ): EL-377MB Business / Handheld Calculator, 10-Digit LCD; Sleek glass top design. Ten-digit display with punctuation for larger calculations. Fast & easy tax calculations. Automatically switches from solar cell to battery power in low light. Auto power off. Calculator Type: Basic; Calculator Style: n/a; Power Source(s): Battery; Solar. .. SHREL377MB or SHR-EL377MB Product details Calculator type Commercial Calculator feature Compact Desktop Handheld Solar