[. . . ] [. . . ] Phillips/cross head screwdriver (not included) needed to replace batteries. x2 1. 5V AA or R6 size 1. 5V AA or R6 size x2 BATTERIES INCLUDED Replace with 2 x 1. 5V "AA" or R6 size batteries. Phillips/cross head screwdriver (not included) needed to replace batteries. [. . . ] [. . . ]