✅NEW QUALCOMM MICROPROCESSOR CHIP: The chip only identifies your dog’s own barking. it is prevented from being falsely triggered by nearby dogs. Dual anti-barking stop modes are features of the collar and the receiver's LED screen clearly indicates the modes: a green light shows Beep + Vibration mode while a red light indicates Beep + Vibration + Shock mode. Both modes have five sensitivity levels ,There is also a filter feature for common sounds such as a baby crying or car horns. ✅INTELLIGENT AUTO PROTECTION MODE: The Hecmoks Bark Collar has two dual modes. Mode 1 features Beep + Vibration + No Shock. Mode 2 features Beep + Vibration + Painless Static Shock. Both modes have the ability to switch automatically should your dog continue to bark, with stimulation increasing at each level. This keeps both you and your dog safe in conditions of low visibility, essential when you are out walking your dog. ✅FITS MOST DOGS: The Bark Collar is ideal for dogs ranging in size from chihuahua to German shepherd thanks to the adjustable buckle and 45cm maximum length. Although it is perfect for dogs ranging in size between these two breeds., we generally recommend the collar to be applied to dogs between 12-120 lbs, in consideration of the comfort of your pet. The value of the Anti-Bark Collar is that it can be worn either indoors and outdoors for training consistency. ✅2019 NEW TECH DESIGN: USB RECHARGEABLE: A mere two to two and a half hours charging is all that is required for an amazing 10-14 days worth of use, depending on usage. Simply charge the collar using the USB port on your laptop, power bank or mobile phone adapter. Never worry again about forking out money on expensive batteries. Being IP67 certified weatherproof, your dog can run in the rain or in any inclement weather. ✅MONEY BACK GUARANTEE: Return our no-shock backing collar for a 100% refund of your purchase price if this product doesn't restore peace to your home.