Cart Product Price Quantity Total × Dogtra D3500 NCP Super X Training Collar Vendor: Work Dog $319.99 Quantity $319.99 × Extra collar/receiver for the SD-425, SD-825 or SD-875E unit Vendor: admin $119.95 Quantity $119.95 Coupon: Apply coupon Update cart Proceed to checkout Cart totals Subtotal $439.94 Total $439.94 Proceed to checkout