When should I introduce the e-collar in training?

Introduce the e-collar after manually teaching your dog the command on a leash first. The e-collar is meant to reinforce commands, not to teach them from scratch. Our included training manual will walk you through this step by step.

At what age can I introduce the e-collar to my puppy?

Training with the e-collar can start when your puppy shows they reliably understand commands but is choosing to not listen. This varies, but typically happens around six months. Keep sessions short and fun, always ending on a positive note.

Are e- collars safe for my dog?

Yes, when used properly, the static setting on a quality e-collar is a safe and effective way to reinforce commands. It's comparable to feeling a static shock after rubbing your socks on carpet. Most people can barely feel the lower levels.

What level should I use to train my dog with?

It’s important to use the lowest effective level when training. Your dog should never jump or vocalize. Look for a slight head turn or ear twitch to know your dog feels the correction. This level will vary depending on the level of distraction.

Can I change the settings on the FieldTrainer 425X?

Out of box, this system will deliver tone when the dial is on V/T & low, medium, and high levels of static for each number on the dial. The button functions can be easily adjusted if you’d prefer to train with vibrate or need to train multiple dogs.

Sportdog Fieldtrainer 425x And Sporthunter 825x Add A Dog Collar

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

$229.63

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

Description

🐾 Master the field with precision and power — because your pack deserves the best.

BUILT FOR THE WILD - Fully waterproof and submersible up to 25 feet with DryTek technology—ready for any rugged adventure.
TAILORED TRAINING MODES - Choose tone, vibration, or shock corrections to perfectly match your dog’s temperament and drive.
EXPAND YOUR PACK CONTROL - Easily add an extra dog to your existing FieldTrainer 425X or SportHunter 825X system for seamless multi-dog management.
PROFESSIONAL GRADE DURABILITY - Crafted for serious trainers who demand no-fail performance in real-world, harsh conditions.
RAPID RECHARGE ALL DAY POWER - Get back to training fast with a 2-hour quick charge and up to 60 hours of uninterrupted use.

The SportDOG Add-A-Dog Collar SDR-AXF is a rugged, rechargeable remote training collar designed to expand your FieldTrainer 425X or SportHunter 825X system. Waterproof up to 25 feet and quick-charging in 2 hours, it delivers 40-60 hours of reliable use. Trusted by professional trainers, it supports multiple dogs with customizable tone, vibration, and shock corrections, making it ideal for serious handlers managing multi-dog households in demanding outdoor environments.

Specifications

ASIN	B07X9TZ4L3
ASIN	B07X9TZ4L3
Age Range Description	All Life Stages
Animal Collar Type	Electronic Training Collar
Batteries	1 Lithium Polymer batteries required. (included)
Best Sellers Rank	#43,674 in Pet Supplies ( See Top 100 in Pet Supplies ) #47 in Hunting Dog Equipment #233 in Electronic Training Collars
Brand Name	SportDOG
Breed Recommendation	All Breed Sizes
Closure Type	Buckle
Color	Orange
Customer Reviews	4.5 4.5 out of 5 stars (983)
Date First Available	September 13, 2019
Dog Breed Size	Large
Included Components	charging adaptor, long contact points, operating guide, receiver collar
Item Dimensions L x W	6"L x 3"W
Item Type Name	Remote Trainer
Item Weight	11.2 ounces
Item model number	SDR-AXF
Manufacturer	Radio Systems Corporation
Manufacturer	Radio Systems Corporation
Manufacturer Part Number	SDR-AXF
Material Type	Nylon Stainless Steel
Model Number	SDR-AXF
Number of Items	1
Pattern	Solid
Pet Type	Dog
Product Care Instructions	Keep dry, avoid extreme temperatures and harsh chemicals, gently clean with a damp cloth if needed.
Product Dimensions	6 x 3 x 6.5 inches; 11.2 ounces
Product Style	New X-Series
Size	1 Count (Pack of 1)
Target Species	Dog
UPC	729849166103
Unit Count	1 Count
Warranty Description	1 Year Manufacturer

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

$229.63

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.