DFGHNBVC No Battery Required Wireless Doorbell Waterproof, 4 Transmitters 1 Receiver Doorbell Plug In Wireless 200M Transmission Distance Led Flashing Light Reminder,Gold,White,Black

[WIRELESS DOORBELL WATERPROOF ] 4X transmitter,No battery is required, and kinetic energy is converted into electric energy. The button's ultra-low power consumption and long service life allow it to operate between -20 ° C and 60 ° C to withstand harsh weather conditions. . [DIFFERENT TONES FOR YOU]: There are many interesting pieces to choose from, and 48 different ringtones are available for sound and ringtone selection. Each receiver can have a different tone. Whenever someone rings your wireless doorbell, you will enjoy a pleasant melody [IP44 WATERPROOF FASHION DESIGN] with powerful wireless signal up to 200M(656FT). IP44 rated sensor with waterproof ring. Blue LED flash for the elderly. The flash indicator gives you an intuitive notification message. [EASY TO INSTALL AND DIY] Easy to DIY, the button can be fixed on the door frame with screws or fixed with double-sided tape. 1 receiver [APPLICABLE PLACES] Suitable for families, offices, hotels, factories, etc. In addition, the product is also very suitable as a warning for elderly patients and , covering your home or business in an open space, this doorbell ensures that you will never miss any visitors.