Features 1、With flash lighting function, convenient to look for the location of your dog. 2、Multi-functional stop barking collar, with warning sound + vibration + electrostatic stimulation + sensitivity adjustment. 3、Waterproof function, so you can use it even in rainy days. Convenient and practical. 4、6-35cm adjustable design, easy to fit for small or large dogs. 5、Equipped with usb cable, allow to be repeatedly charged at any usb output interface. When use large capacity lithium battery(300mah), can support up to 60 days of super long standby. Specifications: Condition:100% Brand New Material: Abs+ Nylon Ribbon Color Options: Sky Blue；Lemon Yellow；Orange；Army Green Item Type: Stop Barking Collar Main functions of the product: product upgrade, avoid cumbersome reset function, prevent external interference, accidentally trigger product work. 1. Function: warning sound + vibration + electrostatic stimulation + sensitivity adjustment, charging + waterproof. 2. Gently press the power button for 0.5 seconds to start up the product, at this time the product will shake, long press for 2 seconds and then a long sound to turn off the machine. The sensitivity of 3 gears is adjusted. If two green lights are on at the same time, it is 3 gears. 3. Sensitivity display gear (press the power button). 4. Function mode adjustment, (press the function key) can turn off one of the functions, also can work at the same time. 5. When walking the dog at night, you can choose three modes of flashing lights (long press the function button for more than 2 seconds, long press to turn off the flashing lights). to facilitate the owner to quickly find the location of the dog. 6. When charging, the product's green red light water flashes, and the two lights are long and bright, representing the completion of charging. Package List 1 x Stop Barking Collar 1 x USB Cable