1. Remote controller is small, flexible and simple to use. 
2. Receiver collar is highly waterproof, so your pet can wear it and swim in the water. 
3. It has 3 functional modes: Vibration, alarm sound, vibration and alarm at the same time. 
4. Levels of vibration is adjustable, and a proper level has to be determined when you use this pet training system for the first time, you are advised to try level 1-100 gradually. 
5. The remote distance is 500 yards (without any disturbance). 
6. There are two signal channels on the remote transmitter, it can control two receivers of the same model. 
7. Energy-saving design, and automatical stand by model and memory functions. 
8. This model is suitable for most large, medium and small sized dogs.