√   Patented design with small and fine of meniscus shape.
√   Easy and convenient to test the functionality and sensitivity by blowing.
√   5 levels of sensitivity adjustment by+ and -buttons to be suitable for different dogs.
√   2 training modes: beeper and static shock.
√   5 different combinations of beeper and static shock to train dogs effectively.
√   Adjustable leather leash from 6” to 30” to suit for Dogs