Sportdog Nobark Collar Rechargeable 3 Selectable Mode. Unlike anything before it the SBC-R quickly determines your dog?s unique bark using our Silent Partner? technology and filters out all the rest so it?ll perform in either a single-dog home or a kennel full of barkers. Either way you?ll have the most superior bark detection.Features:MORE INFORMATIONThe NoBark SBC-R uses our Silent Partner? technology to detect your dog?s unique barking style and delivers a correction only then. By filtering out any external noise including another dog's bark your dog receives the most consistent training possible. Now with the option of both long and standard Contact Points the SBC-R offers 10 levels of static stimulation as well as 3 programmable modes: Temperament Learning Progressive Correction and User-Selected. The OLED display shows the current mode of operation as well as battery-life status. As a built-in safety feature if your dog barks 15 times or more within an 80 second period the SBC-R will stop issuing static stimulation for 30 seconds and then resume normal operation. In Temperament Learning mode the correction starts at the lowest level and increases to the next level each time your dog barks within 30 seconds of the previous bark. The collar remembers the correction level needed to stop your dog?s barking. The next time your dog starts barking the correction will start at the last/highest level used. The static stimulation level will be reduced 30 seconds after your dog stops barking. In Progressive Correction mode the correction starts at the lowest level and increases to the next level each time your dog barks within 30 seconds of the previous bark. If your dog doesn't bark again within 30 seconds the correction will reset to the lowest level. In User-Selected mode you manually choose the correction level. If your dog barks the collar will correct him at the level you?ve selected until he stops barking.STIMULATION RANGES10 levels of static stimulation with 3 programmable modesBARK DETECTION TYPESilent Partner? technology - detects your dog's unique barking style and filters out everything elseAUTOMATIC SHUT OFFYes. Correction stops after 80 secondsWATERPROOFWaterproof and submersible to 10 feetDOG SIZEFor dogs 8 pounds or larger with neck sizes 5" - 22"BATTERIESRechargeable lithium-ion battery Charge in 2 hours last 200 hours per chargeLOW BATTERY INDICATORYesCONTENTSNoBark SBC-R Collar 3/4" Black Collar Strap Adaptor With Charging Cradle Standard Contact Points Long Contact Points Operating GuidePRODUCT DIMENSIONSCollar Receiver without strap - 2.75"L X 1.125"W X 1.125"H Specifications for Sportdog Nobark Collar Rechargeable 3 Selectable Mode: Manufacturer: SportDOG Color: Black Additional Features: Rechargeable Length: 6.45 in Dimensions: 3.25 X 6.00 X 6.45 in Package Contents: Sportdog Nobark Collar Rechargeable 3 Selectable Mode Sportdog Nobark Collar Rechargeable 3 Selectable Mode