[. . . ] AGES PLAY: Playing with this radio controlled vehicle is simple and fun. [. . . ] If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: · Reorient or relocate the receiving antenna. CAUTION: Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. Bounce Back Racer TM INCLUDES: Car, wireless controller and instructions. 9V or 6R61 size x1 NOT INCLUDED Alkaline battery recommended. Phillips/cross head screwdriver (not included) needed to insert battery. BATTERY REQUIRED NOTE: Adult should remove and discard plastic fasteners. Product and colors may vary. P/N 6954080000 099950001 Asst. NOT INCLUDED Phillips/cross head screwdriver (not included) needed to insert batteries. ALKALINE BATTERIES REQUIRED 1. 5V AA LR6 size x6 Questions?Call: 1-800-327-8264 TO INSTALL BATTERY IN WIRELESS CONTROLLER: Use a Phillips/cross head screwdriver (not included) to loosen screw in battery compartment cover (screw remains attached to cover). Replace cover and tighten screw. IMPORTANT: BATTERY INFORMATION CAUTION: 1. [. . . ] Then turn on and resume normal use. To conserve batteries, be sure to switch car to "off" when not in use. [. . . ]