Fangrui Product Details 2 Setting Modes, Beep, Vibrate Upgrade The Intelligent Dog Sound Recognition System Intelligent Safety Automatic Sleep Mode The Receiver Is Ip67 Waterproof, Dogs Can Wear It For Swimming, Bathing Or Running In The Rain. Induction Sensitivity Adjustable (5 Levels Adjustable) Easy Charging, Long Battery Life, Battery Indicator Grid Silicone Contact Points, Not Hurt The Dogs Neck. Adjustable Dog Leash For Dogs Of All Sizes Colour:black Material:plastic Package Contents: 1 X Anti Barking Device 1 X Adjustable Collar 1 X Usb Charging Cable Only The Above Package Content, Other Products Are Not Included. Note: Light Reflection And Different Displays May Cause The Color Of The Item In The Picture A Little Different From The Real Thing. The Measurement Allowed Error Is +/- 1-3cm.