training dogs no bark collar indinite sensitivity adjustable by gear to suit for different dogs

training dogs no bark collar  indinite sensitivity adjustable by gear to suit for different dogs   If you need buy sample,Please visite our store aliexpress: http://www.aliexpress.com/store/product/Free-Shipping-automatic-pet-products-dog-un-bark-collar-good-quality-training-device-PET852/1305522_1920207391.html   1.    Patented design with small and fine of meniscus shape. 2.    Easy and convenient to test the functionality and sensitivity by blowing. 3.    Indinite sensitivity adjustable by gear to suit for different dogs. 4.    2 training modes: beeper and static shock. 5.    7 different combinations of beeper and static shock to train dogs effectively. 6.    The collar turns into 1-minute-automatic protection mode after 7 times consecutive working (pause time must be less than 30s). 7.    Adjustable leather leash from 6” to 30” to suit for different dogs: small, medium and large (not for huge) 8.    High quality with reasonable price, easy operation with practical function