Rare...never used. Old stock that was literally in a man's closet for decades. The calculator features 95 functions, including 78 scientific fucntions and 17 calculator functions. 

The calculator also features large, easy-to-read 10-digit liquid crystal display, along with hexadecimal, octal, and binary calculations. 

The calculator can perform compelx number calculations. 

15 levels of parentheses with up to 4 pending operation. 

Handling Time: 1 Business Day (excludes weekends and holidays)

Shipping: Standard Ground

Returns: 30-Day Free Any Reasons Returns. You pay nothing to ship your item back to us for any reason. Simply open a return, select the correct return reason, we will approve it and send you a shipping label. You are refunded once we receive your item back. Visit our store for complete policy details.