Hello Dog Lover, If you have dog and barking, try to teach first sound, second vibration. Please do not use shock for her. Barking is normal situation of dogs. You can not suppressed national habits of dogs. - High quality remote controller (multifunction and easy to use) - water proof and rugged sensors (sound, vibration and shock) - 2 x collar in package (black and orange) I recommend this product for dog owners Best Regards,

Hello Dog Lover, If you have dog and barking, try to teach first sound, second vibration. Please do not use shock for her. Barking is normal situation of dogs. You can not suppressed national habits of dogs. - High quality remote controller (multifunction and easy to use) - water proof and rugged sensors (sound, vibration and shock) - 2 x collar in package (black and orange) I recommend this product for dog owners Best Regards,

Hello Dog Lover, If you have dog and barking, try to teach first sound, second vibration. Please do not use shock for her. Barking is normal situation of dogs. You can not suppressed national habits of dogs. - High quality remote controller (multifunction and easy to use) - water proof and rugged sensors (sound, vibration and shock) - 2 x collar in package (black and orange) I recommend this product for dog owners Best Regards,

Nice Product.Works as expected

Nice Product.Works as expected

Nice Product.Works as expected