Please Note: Products are designed and rated for use in the United States using 120 volt current. With or without a transformer, this product is not recommended for use outside the US. Let Me Out Doormat requires (3) AAA Batteries (not included). Just step on to activate. Battery pack and speaker are connected to mat by a small 3' long power cord. Mat says, Help! Let me out! and screams. Measures approximately 15 high x 24 wide. For indoor use only. Product and colors may vary slightly.