security of electro shock add-ons

We have been considering purchasing something similar to the DreamLover 2000, but it comes with a high price tag. We’ve tried using a dog collar before, yet it doesn’t really lock securely. Any thoughts on other brands or types of shockers that can be attached as an add-on? I use a PA, so I would love to find something compatible with a PA-based device, but haven’t come across any? Suggestions?

I'm not sure about specific add-ons, but there is a CB-3000 'type' device that has built-in contacts... I believe I spotted it at . I have been thinking about taking apart a dog shock collar and fitting the electrodes into a CB-3000.

I’ve attached a SmartDog shock unit to the ring on my chastity device. It connects via Bluetooth and delivers a shock to my scrotum. It can be quite painful at higher intensities! I used small tie wraps along with gorilla glue, and it stays completely secure without needing removal! I had to do this because my wife dislikes having a separate controller, so the app on her phone is perfect.