Product Description

1. advanced RF **4 MHZ technology boosts range up to **0 yards
2. built in high capacity lithium rechargeable batteries
3. both transmitter and collar receiver can be charged at the same time
4. completely waterproof collar receiver can be charged at the same time.
5. convenient easy to read backlight LCD screen that shows the stimulation level
6. silicone, white stenciled s against orange background for easy low light condition viewing 
7. fits all dogs 
8. quickly synchronize the trasmitter with collar receiver within *0 senconds
9. mode:vibration and beep . No sock no harm.