... use 4pcs of AAA batteries ( not-include)♦the wheels can running when times up,go forward and backword, clockwise rotation, ... negative rotation, irregualr rotation at 360 degree,can running 3 feets♦can set the time & game molds, the best ... for kids & adults♦certificate:3C/EN71/62115Specification: Item No.:GB0115145Description:running alarm clockProduct size 16.50 * 11.50 * 11.00 ...