Voltage 1.5V. High-quality alkaline button battery manufactured by Panasonic.

LR44 batteries are used in watches or calculators, for example.
Voltage: 1.5V
Dimensions: 11.5 x 5.1 mm
Other similar type numbers include AG13, V13GA, G13A, 13GA, PX76A, PX675A, 157, GPA76, KA76, KA, L1154, LR1154, A76, RW82, 1166A, 1128MP, D76A, S76, 208-904, SB-F9, GDA76, GPS76A, MS76, GP76, B-LR44, 76A