Whether with battery: yes
Compatible battery: button battery
Net weight: 65 (g)
Function: two-in-one measurement and arithmetic
Display digits: 8
Ruler scale: 15cm
Packing:1 pc Energy Ruler Calculator
Product name: Energy Ruler Calculator
Material: plastic + electronic components
Gift-giving purposes: points redeemed for gifts, business gifts, advertising gifts, conference gifts, welfare gifts, festive gifts, commemorative awards, public relations gifts
