Features: 1.4 in one function: fully automatic mode + vibration + electric shock + sound 2. The remote control and the receiver can be charged repeatedly, the receiver is waterproof 3. The receiver has a manual mode and an automatic mode, and there is an automatic mode more than the products on the market. 4. Color: Black 5. The remote control uses a built-in antenna, which is a product that uses a built-in antenna on the market. 6. Vibration, electric shock, 7-speed sensitivity adjustment in automatic mode, convenient for customers. 7. In automatic mode, the shock sensitivity of the receiver can be adjusted using the remote control, which is convenient for customers. 8. Control distance: 800 meters straight line distance without interference. 9. The reception frequency of the receiver is: 433 Mhz
