Home Doorbell Wireless Communication Digital Electronic Remote Control Electronic Doorbell Features: The wireless doorbell has strong penetration and a 200 meter coverage range. The ringtone is clear and Beautiful,and it is Not harsh. You can choose from 60 different types of music. No wiring is required for installation without wiring. The button and receiver are wirelessly connected. Wiring free installation,convenient and labor-Saving The ringtone of the standard interface is clear and Not harsh. The ringtone is as clear and pleasant as the sound. There is No harsh Noise. As long as you press steadily,a good doorbell will ring. Customized RF wireless solutions. Copper Spring antenna has strong wall penetration performance. The second choice of 60 ringtones is Not to worry about. Built in 60 different types of music+Dingdong. Don't let a tinkling sound contaminate your ears. There are a total of five voices,one of which can be heard by Baoma. The baby did Not wake up. Product Description: Package Contents: Instructions * 1 Screw pack * 1 Door bell * 1 Due to different monitors and lighting effects,the actual color of the item may be slightly different from the color shown on the picture. Thanks! Due to manual measurement,please allow slight measurement deviation The wireless doorbell has strong penetration and a 200 meter coverage range. The ringtone is clear and Beautiful, and it is Not harsh. You can choose from 60 different types of music. No wiring is required For installation without wiring. The button and receiver are wirelessly connected. Wiring free installation, convenient and labor-Saving The ringtone of the standard interface is clear and Not harsh. The ringtone is as clear and pleasant as the sound. There is No harsh Noise. As long as you press steadily, a good doorbell will ring. Customized RF wireless solutions. Copper Spring antenna has strong wall penetration perFormance. The second choice of 60 ringtones is Not to worry about. Built in 60 different types of music+Dingdong. Don't let a tinkling sound contaminate your ears.