Wireless Smart Electronic Doorbell For Home And Business With Elderly Call Alert Emergency Button And Service Bell Dingdong Machine Features: Multi-function design This smart electronic doorbell serves as a senior call button, reminder, and service bell, providing versatile solutions for various needs in both home and commercial settings. 36 Chord Ringtones With a selection of 36 different chord ringtones, including music and alert tones, you can customize the doorbell to your preference and create a more personalized ambience 4-level Adjustable Volume Adjust the doorbell volume to suit different environments and needs, ensuring that you won't neglect any important visitors or reminders, regardless of the surrounding noise level. Wireless Connection Utilizing advanced wireless connectivity, this doorbell eliminates the need for wiring installation, allowing for easy remote connection and hassle-free setup. Easy Installation With user-friendly operation and detailed installation instructions, even those without skills can effortlessly set up the doorbell, saving time and effort. In just a few steps, you can enjoy the convenience and comfort of a smart doorbell. Product Product type: Door bell Material: ABS Product color: White Packing size: 9x7x7cm/3.54x2.76x2.76in Gross weight: 100g/0.22lb Scope of application: Home, office, villa, club Ringtone: 36 Power consumption: