Dogtra Smart Nobark Collar 1409830. eliminating false corrections from ambient noise. Fully waterproof and compact it offers 100 medium output levels and features auto level increase and vibration for safer more effective training. Paired with the free Dogtra Smart Nobark app users can track barking behavior and control settings remotely though the collar functions independently without the app. With a 30-yard e-collar mode range and precise responsiveness this collar is ideal for improving your dog?s behavior safely and efficiently. Specifications for Dogtra Smart Nobark Collar: Manufacturer: Dogtra Color: Black Features of Dogtra Smart Nobark Collar: Detects barking howling and whining Triple detection system filters out ambient noise App-based control via Dogtra Smart Nobark app (not required to operate) Tracks barking behavior through the app Auto level increase for progressive correction Vibration and correction modes 100 medium output levels 30-yard e-collar mode range IPX9K waterproof rating Receiver Weight: 2.1 oz Receiver Dimensions: 2.46 x 1.55 x 1.88 in Includes Dogtra Smart Nobark e-collar and USB-C charging cable Phone not included Package Contents: Dogtra Smart Nobark Collar