We have covered various Bluetooth-enabled cat and dog training systems in the past. The Esky Rechargeable Dog Training system pairs with your smartphone, allowing you to train your dog to behave better. It offers user-adjustable warning tones, static shocks, and vibrations. You get adjustable 99 levels of shock and vibration in dog training function.
The device is compatible with iOS and Android devices. You can get extra receivers to train multiple dogs. There is also an anti-lost/fence function, so you can keep an eye on your pet. Sets you back under $70.