Place the floor mat along side of a bed or by a doorway, when weight is applied to the floor mat, the alarm will sound to alert the caregiver that assistance is needed. The pressure sensing floor mat is gray, made of a high quality, durable rubber with non slip surface and beveled edges 24in x 36in. The wireless alarm can be placed in a convenient location with the caregiver. The alarm has a low, medium, high volume adjustment with a chime alert. The floor mat is pre-programmed to the alarm and ready for use upon delivery. Use 3-C batteries, (not included) or AC-04 power adapter (sold separately). One year manufacturer warranty.