Extreme Dog Fence 2Nd Generation Compatible Add-On Active Collar Receiver (Native Collar) -3 Pack - Recommended For Most Dogs From 8 To 120 Lbs Only Compatible With The Generation 2 Transmitter (White With Blue Center - See Main Image Above) The Extreme Dog Fence System Can Accommodate An Unlimited Number Of Dogs, With The Purchase Of Additional Fence Dog Collars.

This Active Collar Receiver Boasts 7 Levels Of Correction And A Beep Only Level: Level 0 = Beep Only- Level 1 = Extra Low- Level 2 = Low- Level 3 = Medium- Level 4 = Medium/High- Level 5 = High- Level 6 = Low Progressive (Starts On Level 1, Goes To 2, And Then To 3, If The Dog Does Not Return To The Containment Area)- Level 7 = High Progressive (Starts On Level 3, Goes To 4, And Then To 5, If The Dog Does Not Return To The Containment Area) When Setting A Correction Level, You Should Only Increase The Collar Level 1 Step At A Time, And Test.

Watch For Some Kind Of Physical Reaction From Your Dog When He/She Feels The Correction. You'll Want To See Their Ears Perk Up, Or Neck Cock Back, Or Perhaps They Will Scratch At The Collar. This Is A Good Correction Level To Start Your Dog On.

This Package Includes The Following: 1X Waterproof Collar Receiver (Blue Receiver / Red Strap)- 1X Sets Of 5/8 Medium Comfort Contact Probes (With Rubber Tips)- 1X Set Of Large Rounded Contact Probes- 1X 6 Volt Battery For Collar Receiverfor Assistance Programming Your Add-On Extreme Dog Fence Collar, You Can Watch The Instructional Video On The Manufacturer's Website, Under The Support Menu, Or You Can Reach Out To Us Any Day Of The Week. Get Yours Now!