Tektalk Wireless Metallic Edge Decored Door Bell Chime and Push Button with 36 Chimes & Volume Levels-White (1 Remote Button and 2 Plug-in Receivers with LED Indicator) IP44 waterproof material is safe for outdoor use, especially for children and pregnant woman. Ingot silver edge is dustproof, easy for cleaning. Best gifts for friends and family. 36 chimes are offered more choices for your favor. 4 levels of adjustable sound volume is a good option for nap time without disturbing your child when they are asleep. Easy installation without damaging the wall & low power consumption for saving energy. Reaching a distance of up to 280m/approx 1000ft when there are no obstructions, whether you are busy working on your computer in the home office or sharpening your culinary skills in the kitchen, you will be promptly notified by the chimes and flashing blue light when someone pressing the push button. Special design of auto-learning codes helps to prevent interference from other users or appliances. Highly portable wireless design lets you take it with you to the patio, your garage workshop, or your home office. Can be used to send emergency massage or care for the old or patients. PROMOTION: For more promotional details, please refer to Description or Special Offers and Product Promotions.