Help soothe and calm your new kitten with the melodic vibration of a mother’s heartbeat. The ingenious design of the Mother’s Heartbeat Heated Cat Bed by K&H creates the soothing feel and sound of a maternal cat heartbeat. Included with each cozy bed is a K&H Pet Bed Warmer, pillow, and heartbeat device. The cat heartbeat device can be installed in either the pillow or the bed. The heart rhythm in this kitten heartbeat set is specifically for kittens. K&H offers different heartbeat sets for dogs as well. This heated cat bed has been tested & certified by MET Labs to exceed USA/CA electrical safety standards. One year limited warranty.