Brand: effective

Product Name: calculator (not voice calculator)

Model: 1654 (with 1 batteries of 5)

Specification: 186*147*39.5mm

Unit: (price is a price)

Packing: 10 / box 40/ box

Features: 12 digit calculator display screen， manual shutdown， automatic shutdown

The percentage of angle display， double power driving

LCD dot matrix display， digital clarity