Koopower Self-Powered Wireless Doorbell with 2 Plug-in Receivers, No Battery Required, Waterproof Button, LED Flash, 58 Melodies, Easy Installation

This particular doorbell system cost quite a bit more than some of those similarly available. However this type of product for me is one for which I will remember how well it performs, long after I have forgotten how much I paid for it - so quality was my key priority. I am happy to pay more for something that ticks all of the right boxes.Does it tick the right boxes? I have only owned this for one day, however from the onset I am already, so very impressed!This is why this product ticks the right boxes for me:1) It is wireless and its three components (external push button transmitter plus two internal units for the "bell", look and feel well made.2) It requires no batteries at all, even the external door mounted push button unit.3) It can be installed in next to no time, with complete ease:The internal bell/chime units simply plug into a spare 240volt socket. The external push button unit was affixed to my PVC door frame using the supplied high quality 3M double sided foam tape that was pre-cut to the correct size to fully cover the back of the unit, ensuring secure fixing. I did use a degreasing cleaner on the door frame and back of the door bell knob unit, prior to fixing it in place. I feel confident that the push button unit will remain fixed securely using this method, although the supplied screws could have been used instead. For wooden frames, I would probably have used the screws.4) The set up could not have been more simple. The instructions described how to "pair" up the two receivers to the transmitter (the door unit). I just plugged the two receivers into a spare 240 volt mains socket (one upstairs and one down stairs), pressed the knob and I found no need to "pair" the components as both bells rang straight away. Further testing was faultless, the system worked first time, straight out of the box.5) The default "Ding Dong" tone is fine with me, so I won't even bother listening to the many others available, easily changed by pressing one of two buttons on the receiver bell units.6) Volume wise, the receiver bell units have 3 levels (second button used for volume alteration), which in my opinion give a good range of options and 3 are plenty. I set our down stairs bell to the minimum, and the upstairs one to the middle level. These are fine for our 4 bedroom house, sufficient to be easily heard when the TV or radio is playing without being too loud and annoying.7). Activation of the bell also gives a flashing blue light on the receivers which could be especially useful for anyone who has compromised or limited hearing, obviously assuming that the receiver(s) are strategically placed so as to have them visible, should someone ring the bell.Conclusion:Prior to purchasing this product, I had a big problem in working from home upstairs, not hearing anyone knocking at our front door.This excellent product provides a quality solution for me that ticks all of the right boxes!

This is a great doorbell never have to worry about batteries, really loud and in a thick stone walled house the receiver even worked in the cellar.Really is a great product.

Arrived today and very impressed.My last wireless doorbell lasted approx year and a half before the button part died.... Probably from being rung for so many Amazon deliveries 😂 so I had a look for a replacement and found this.I was sceptical about this not needing a battery but it really doesn't use one! It works on a dynamo type function. The button is very tactile and gives a solid click when you press it in which produces enough energy to send the signal to the 2 receivers. I've got one upstairs on the landing and the other downstairs so that it can always be heard. The receivers have 2 options, volume and melody. The melodies are what you'd hear on a babies toy that plays basic polyphonic-esque type melodies. I don't think many will choose from the list available but I did smile when I heard "under the sea" from the little mermaid 😁 you can cycle through about 4 different ring levels but I'd rather not miss the doorbell so have set it to the max which also lights up blue when the bell sounds. Considering how much you'll spend over a few years in batteries for other types of wireless for bells that need them, this will pay for itself.Installation is literally 2 minutes which includes opening the Amazon box. Self adhesive pad that's supplied goes on the back and sticks directly to your door frame, window or any other smooth surface... Plug in the receivers in the wall and you've finished faster than a formula 1 pit crew.Naturally, we will have to see how well it holds up but time will tell.

This would be a 5-star review if the first unit sent out worked as described. The unit had an issue with the transmitter (bell-press) unit that meant you had to press the button twice to get the bell to sound. However, the vendor was very understanding and replaced the unit promptly. The new unit works as described. It is very easy to set-up and link to the receiver units and crucially, requires no batteries on the transmitter unit. Build quality looks good and the receiver units although somewhat large (don't plan to use anything other than a standard plug in the other socket if you plug this into a double wall socket) work well. The bell unit is easily fixed to UPVC door- frames using the heavy duty double sided Scotch tape supplied, although for wooden door frames, screws are supplied. Compared to typical high street units with two bell units, this unit is very competitively priced. Customer support is good too.[Update] After several weeks use, can safely say this unit is reliable and having multiple sounders works great for around different parts of the house. Don't think we've missed anyone yet :)