How to modify the doorbell on the security door can make the sound louder, if you want to use the or

Hello! I have tried this situation, and the effect is good, it is the original security button on the original security door;

It's just to buy a doorbell with a loud sound (you can choose a loud ringbell regardless of the style, just choose a loud ringtone that sounds good, or you can remove some chips and amplifiers with ringtones on some toys and then solder to replace the original ones); The button can be replaced with a more beautiful one, but the position does not need to be changed;

I bought three doorbells and assembled them into one, but it cost more; I chose an old-fashioned doorbell because I liked the button; I chose a button with a wire, but it was a separate button, and the doorbell was fancy to the chip and loudspeaker that could be changed for different ringtones; I also chose an all-copper screw fix, which can prevent theft, the doorbell is fancy to prevent the door from rotating and being stolen, and at the same time, there is a button in the cat's eye, but the sound is too small; Each of these three has its own strengths to form a new DIY doorbell.

It's too cumbersome to modify like that, if you can do it yourself, it's okay, no one outside wants to do it for you, you better buy a remote control doorbell again. Wireless. The keys are fixed on the outer wall of the door.

The doorbell can be placed in the living room or in a convenient location. The good ones are only a few dozen dollars. It's about 20 cheaper.

That voice is tunable. Several voices are in random tune. It's pretty much what you need.

I've also changed it this way, the old doorbell button is easy to break and inflexible, the new one with luminous is too power-hungry, is there any other way?