[ Humane & Free from Remote]: Our anti-dog barking collar can intelligently detect the dog's bark and automatically release harmless citronella spray to stop barking. Only barking twice or more in 10 seconds will trigger the spray which is More Humane, Safer and More Effective than electric shock collars.【Include citronella spray, 】 [ Adjustable Sensitivity & Sprays Volume ]: Our citronella bark collar has 2-level sensitivity and 2-level spray volume. You can choose the most suitable combination of sensitivity and spray volume according to the environment and the size of the dog.【Please see the picture for the operation method】 [ Rechargeable & Waterproof ]: The barking collar built-in Li-ion Polymer battery, rapid charge only needs 1.5~2.5 hours for 10 days of regular use. Waterproof design allows dogs to play in splash water or rain, but please don't soak it in the water (can't bathing or swimming). [ Suit For Most of the Dogs ]: We send 2 Reflective Nylon Collar Strap that can allow you to change your dog's appearance. The adjustable strap(3-21inch) makes the stop barking collar fits all sizes of dogs(8-120lbs). We recommend the use of the bark collar for dogs aged 6 months and weigh over 8 lbs. Fits small, medium & large dogs, except aggressive dogs/long nose dogs/smelling impaired dogs/long neck dogs. [ Perfect After-sale Service ] Professional Service: It is recommended to refill citronella each time before use. This collar cannot match the remote control. If you have any questions, please connect us, our professional service team will answer.