This is an H-166 USB Charging Cable Waterproof and Automatic Bark Control specially designed to train the dog to stop barking. With a sound sensor attached， the collar is securely fastened around a dog’s neck， and it will deliver a shock when a dog barks. It is waterproof， automatic and rechargeable with USB cable. It provides a professional shock and vibration with LCD remote electric training collar for mild-mannered to stubborn disposition dogs. This bark control is safe， humane， robust and highly efficient for the education of your pet. Don’t miss out!                                    Features             Waterproof collar and transmitter<br> Easy to use and ergonomic transmitter<br> Gradual adjustment in stimulation intensity<br> Powered by a 3.7V 200mAh Li-ion battery<br>  Practical， ultra lightweight design <br> Low power indicators are designed on transmitter and receivers   <br>                                                            Specifications             Dimensions     (2.36 x 1.50 x 1.18)" / (6 x 3.8 x 3)cm (L x W x H)                <br> Collar Length     19.69" / 50cm    <br> Weight     7.23 oz / 205 g    <br> Battery     3.7V 200mAh Li-po Battery    <br> Power Supply     Input AC 100-240V / Output DC 5.2V--500mA    <br> Color     Black    <br> Waterproof     Yes     <br> Applicable Pets     Dog     <br>                                                             Package Includes            1 x Bark Control<br>1 x USB Charging Cable<br>1 x Charger<br>1 x Collar<br>1 x User Manual<br>