The Dogtra Edge RT Extra Collar can be used to expand your existing Edge RT system to 3 dogs or replace an existing collar. 

Note: This collar receiver will not work with the Dogtra Edge (only the Edge RT). 

Features

• Collar receiver is fully waterproof
• Up to 1 mile range
• Recommended for dogs over 35 lbs. 
• Fits dogs with neck diameters up to 23 inches
• Collar has LED low battery light so you know when to charge
• User replaceable lithium batteries
• Rechargeable-batteries quick charge in 2 hours
• Contact points can be extended to 3/4" by adding contact point washers (included)
• Two year parts and labor warranty plus limited lifetime warranty

Unit Specifics

• Collar weight with receiver: 7.2 ounces
• Collar strap: 1" x 29" 
• Collar receiver size: 1.5" wide x 3" long x 1.75" deep

Box Includes: 

• Edge RT receiver collar
• 1" strap-your color choice
• Splitter cable
• One pair 5/8" contact points
• Two contact point extensions