Advice: (1)Readamp;Save Instructions! (maybe take a phone-camera picture of them?) (2) Power-off when not in use, to save battery (Use the tiny black upper slide switch on the right edge (the other, lower, slide-switch is for alarm enable) (3) Don't be too brief in depressing the start/stop button: Depress for at least a quarter second. (4) To stow the swingout-stand, pull out gently on its middle while swinging it shut. --On the whole, good value for the money. (But I do not know what I will do with six of them!) P.S. The wrapping said "ELECTRONIC CALCULATOR" --- NOT REALLY TRUE.
Rating:
[4 of 5 Stars!]