4 Mode Combination: Shock + Beep, Vibration + Shock, Beep + Vibration,Beep + Vibration + Shock, you can choose the mode according to the condition of the dogs

Long Lasting Battery Life: The battery display reminds you the condition of the battery use, works for about 15+ days after being fully charged within 2 hours

Levels of Sensitivity: 3 Levels of sensitivity (from 1 to 3), the higher the sensitivity, the easier it is to trigger the device,and the level 0 is for blowing air into the sensor hole during testing

Lock Sign: Press and hold the "M" button for 2 seconds to lock or unlock the device,you can see the condition of the lock device or unlock the device by color screen

Humanized Settings: Bark collars is equipped with 2 button and display screen, Press Power button for 2 seconds turn on or turn off the device,Press and hold the " M " button for 2 seconds is lock or unlock the device, Each brief press of the power button adjusts thesensitivity setting sequentially from 0 up to 3, Briefly press “ M " button offers 4 training mode setting: shock + beep, vibration + shock, beep + vibration,beep + vibration + shock

Smart Fast Charging & Long Last: Dog Bark Collar - Fully Charges in Just 2 Hours for 15 Days of Using Time, Compatible with Car Charger, Power Bank, USB Adapter, and Laptop. Train Your Dog Smarter, Not Harder.（NOTE:OUR PRODUCT NOT INCLUDE CHARGER)

AI Anti Mistrigger Chip: Anti bark collar with intelligent AI bark recognition technology, reducing 99% false triggering, accurately detects your dog barks & vocal cord vibrations, effectively avoiding external noise or other dog barks interference, gentle & effective training solution for a peaceful home

Protection Mode: Bark collar for small dogs will enter protection modeand if your dog barks 5 times in a row, and will return to its initial state 30seconds after the dog stops barking

Material: Bark collar for small dog is made of soft and durable nylon reflective collar when exposed to light can improved visibility in dim environments,It is 27 inches long and can be trimmed according to needs, making it an ideal choice for all of dogs over 6 months old