Packing information: 37*33 * 34cm/100pcs

Ultrasonic Dog Bark Stop Anti Barking Control ABS Collar Pet Dog Training Collar
Features: 
Train your dog to stop barking with this control collar.
On/off button.
Trigger accurately by bark vibration (can not activate by other dogs barking).
Audible: creates harsh buzz to stop barking.
Ultrasonic: works by sending out an ultrasonic signal that only dogs can hear when activated by the barking.
High / Low intensity buttons.
On high intensity setting a softer bark will cause the unit to activate.
On low intensity setting a more aggressive bark will cause the unit to activate.
Red light working indicator.
Adjustable stretch collar to fit different sizes.
Specifications: 
Color: Black
Material: ABS
Size: approx. 17 x 5 x 11cm/6.69 x 1.96 x 4.33in
Maximum Adjustable Range: approx. 50cm/19.68in