• 【LONG WIRELESS RANGE& WATERPROOF】 With a maximum working range of 1,000 feet in open space, you won't miss any visitors even if you are in a few rooms. IP55 Waterproof doorbell push button could works under even harshest weather conditions like rainstorms, direct sun exposure and frost. CE, FCC, RoHS certified.
• 【EASY INSTALLATION】 Easy to install button sticks well to any surface or use the screws to secure the button to the door frame, just plug in and you are set to go. No Battery Required for Receiver. The wireless doorbell kit also flash blue lights so even with headphones on they are visible.
• 【EASY PROGRAMMING】 Wireless Door Bells & Chimes has 58 chimes, one mute and 4 adjustable volumes ranging from 25 to 110 dB. Great doorbell for the deaf and hard of hearing, different ringtones are set for different ring tone or receivers so you can know at which door you have a visitor.
• 【EXPANDABLE】 Flexible design according to your actual needs. You can choose the quantity of transmitter and receiver as you like, which can be freely matched with each other. No matter in the bedroom or on the balcony, you will never miss any visits from outside of your door.
• 【LIFELONG TECHNICAL SUPPORT】 Return policy in 30 days / 24-hour reply / 2-year money back / replacement for any product defect and customer dissatisfaction via seller. If you have any questions, email us with your order number and questions.

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