Vibration function: The heart-shaped voice module can simulate the heartbeat vibration of the human heart. Just flip the switch on the left side of the P-position vibration gear and press the button briefly, and the movement will start to vibrate. It will vibrate every 5 minutes and pause for 5 seconds to continue vibrating. , can continue to vibrate 12 times, and will automatically turn off when the time is up, so you can accompany your pet to sleep quietly. Packaging contents: You will receive 4 red animal sound toys, suitable for families with multiple pets, or as gifts for friends Pets, they will love it Battery Powered: The recorder requires 3 batteries to work; if the battery is dead, it can be replaced; Note: The package contains 3 LR44 batteries, unplug the insulating plug to use. Valentine's Day Gift: The Heartbeat Module is a great addition to making teddy bears or other stuffed animals at home. house; it can record your audio and make it permanent so you can use it in your DIY projects as DIY gifts