So you want to upgrade your doorbell? The AVANTEK Portable Wireless Doorbell Kit has you covered. It has 1 push button and 2 door chimes with a range of 1000 feet. The kit offers a total of 52 chime tones for you to take advantage of. The sound level is adjustable too. One door chime can be plugged into an electrical outlet in your home, and the other is powered by 3 AAA batteries. Just fix the push button to your door frame with screws, and you are set. The blue LED flashes when someone is at your door.
The device is easy to install and versatile.