The FroliCatâ„¢ CHEESEâ„¢ is an exciting game of peek-a-boo with tow mice that pop out of eacht side of the Swiss cheese block.Your cat will love the hunt. For surprise play sessions, use the "Play-While-You-Are-Away" mode to keep your cat engaged throughout the day. Features - Two mice play peek-a-boo from either side of the block of cheese - Turns off automatically after 10 - 15 minutes - "Play-While-You-Are-Away" mode allows spontaneous playtime throughout the day - 2 year warranty - Requires 3 AA batteries (not included)