Suitable forPerfect wireless doorbell used in office, home, hotel. also a good product to use as a calling device for the elderly. The remote distance can be up to 100m in the open area, so it is effective for home useWith indicator lightWhen the receiver is triggered, it will play a beautiful melody with indicator light, and it There are 32 melodies or melodies to choose fromLong Lifespan The musical doorbell is safe to use, low power consumption and long lifespan. A good replacement for the old or broken onePackage listNew high quality wireless remote music doorbell includes both transmitter and receiverWarranty If you are not satisfied with the product you received, you can email us at any time. We'll get back to you instantly and help you solve your problem. Our wireless doorbell consists of 32 selectable melodies or melodies as well as indicator lights luminous. It is perfect for office, home, hotel use and also a good product for the elderly. Features: Specifications : Condition: 100% New Material: Plastic Main Color: White Transmission Distance: 100m/328 ,1 feet (in the open space) Bell: 32 melodies or tunes to choose Transmitter: 12V 23A battery (can be used for one year while it works 20 times per day) Receiver: 2 * 1.5 AA batteries (not included) Receiver size: approx. 9.5*6.2*3.3cm/3.74*2.44*1.3in Transmitter size: approx. 7.3*4*1.5cm/2.87*1.57*0.59inWeight: approx. 116 g Package included: 1 * receiver (battery not included) 1 * transmitter (battery included)