Specifications:

HP10BII (hp 10bii) physical features
Display	1 line x 12 char. LCD
Entry system logic	Algebraic
Memory/additional user - RAM	Yes/none
Built-in functions	Over 100
Keyboard	Numbers
HP10BII (hp 10bii) business/finance features
TVM (loans, savings and leasing)	Yes
Amortization	Yes
Cash flow analysis	Register-based
Cash flow functions/No. of functions	IRR NPV / 15
Interest rate conversions	Yes
HP10BII (hp 10bii) statistics/mathematics
Statistical analysis	Cumulative
Std deviation/ mean/ weighted mean	Yes
Forecasting, correlation coefficient	Yes
+, -, x, /, %, 1/x, +/-, 1n, X, ex, n!, yx, SUM x, SUM x2, SUM y, SUM y2, SUM xy	Yes
LOG, 10x, PI, x	x only
HP10BII (hp 10bii) batteries
Batteries	2 x CR2032