Dogtra ARC Extra Collar for ARC low profile remote trainer. Expand the ARC to train two dogs at once.

Features:

• Slim design receiver/collar ergonomically shaped to your dog’s neck
• 'Nick’ and ‘Constant’ stimulation along with a non-stimulating pager/vibration
• Fully waterproof receiver/collar
• Rechargeable 2-hour rapid charge Lithium Polymer battery
• Weight 5.6oz
• Collar strap is 3/4" x 28"
• Receiver dimensions 3.5" x 1.7" x 0.89"