---
product_id: 176156431
title: "SportDOG Brand FieldTrainer 425XS Add-A-Dog Collar for Stubborn Dogs - Additional, Replacement, or Extra Collar for Your Remote Trainer - Waterproof and Rechargeable with Tone, Vibration, and Shock"
brand: "sportdog"
price: "$255.26"
currency: USD
in_stock: true
category: "Sport Dog"
url: https://www.desertcart.us/products/176156431-sportdog-brand-fieldtrainer-425xs-add-a-dog-collar-for-stubborn
store_origin: US
region: United States of America
---

# 2-hour quick recharge Waterproof to 25ft Fits necks 5"-22" SportDOG Brand FieldTrainer 425XS Add-A-Dog Collar for Stubborn Dogs - Additional, Replacement, or Extra Collar for Your Remote Trainer - Waterproof and Rechargeable with Tone, Vibration, and Shock

**Brand:** sportdog
**Price:** $255.26
**Availability:** ✅ In Stock

## Summary

> 🐾 Train smarter, not harder — because your stubborn dog deserves the best!

## Quick Answers

- **What is this?** SportDOG Brand FieldTrainer 425XS Add-A-Dog Collar for Stubborn Dogs - Additional, Replacement, or Extra Collar for Your Remote Trainer - Waterproof and Rechargeable with Tone, Vibration, and Shock by sportdog
- **How much does it cost?** $255.26 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/176156431-sportdog-brand-fieldtrainer-425xs-add-a-dog-collar-for-stubborn)

## Best For

- sportdog enthusiasts

## Why This Product

- Trusted sportdog brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Power Up Fast:** Rechargeable lithium-ion battery with a quick 2-hour charge and low battery indicator keeps you ahead of the game.
- • **Dive-Ready Durability:** Waterproof and submersible up to 25 feet with DryTek technology—rain or swim, training never stops.
- • **Built for the Stubborn:** Specifically designed receiver collar to handle even the most headstrong dogs with precision.
- • **Expand Your Pack Effortlessly:** Add an extra collar seamlessly to your existing FieldTrainer 425XS system without missing a beat.
- • **Universal Fit, Ultimate Control:** Fits dogs 8 lbs and up with neck sizes from 5" to 22", ensuring comfort and control for every companion.

## Overview

The SportDOG FieldTrainer 425XS Add-A-Dog Collar Receiver is a waterproof, rechargeable remote training collar designed for stubborn dogs. Compatible with the 425XS and 425S systems, it fits dogs 8 pounds and larger with neck sizes from 5" to 22". Featuring DryTek waterproof technology, a quick 2-hour lithium-ion recharge, and tone, vibration, and shock stimulation modes, it expands your existing system or replaces old collars with reliable, durable performance.

## Description

The Collar Receiver for FieldTrainer 425XS Stubborn Dog Remote Trainer. Add another dog to your current SportDOG Brand electronic training collar system or replace a shock Collar Receiver with the SDR-ASX Add-A-Dog Receiver Collar.

## Features

- Collar Receiver only, for stubborn dogs; expand your current system or replace an old shock collar
- Compatible with the SportDOG Brand FieldTrainer 425XS (SD-425XS), 425S (SD-425S)
- Waterproof and submersible to 25 feet using DryTek technology
- Fits dogs 8 pounds or larger with neck sizes 5"-22"
- Rechargeable lithium-ion battery with 2-hour quick charge; features a low battery indicator to let you know when to charge

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07XCXQF2H |
| ASIN  | B07XCXQF2H |
| Age Range Description | All Life Stages |
| Batteries  | 1 Lithium Ion batteries required. (included) |
| Best Sellers Rank | #74,314 in Pet Supplies ( See Top 100 in Pet Supplies ) #393 in Electronic Training Collars |
| Brand Name | SportDOG |
| Breed Recommendation | All Breed Sizes |
| Closure Type | Buckle |
| Color | Red |
| Customer Reviews | 4.3 4.3 out of 5 stars (200) |
| 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 | 9"L x 5"W |
| Item Display Dimensions | 3.13 inches |
| Item Type Name | Add-A-Dog E-Collar |
| Item Weight | 11.2 ounces |
| Item model number  | SDR-AXS |
| Manufacturer | Radio Systems Corporation |
| Manufacturer  | Radio Systems Corporation |
| Manufacturer Part Number | SDR-AXS |
| Material Type | Plastic |
| Model Number | SDR-AXS |
| Number of Items | 1 |
| Pattern | Solid |
| Product Dimensions  | 9 x 5 x 7 inches; 11.2 ounces |
| Product Style | New X-Series |
| Size | Receiver without strap - 2.60"L X 1.30"W 1.23"D |
| Target Species | Dog |
| UPC | 729849166127 |
| Unit Count | 1 Count |
| Warranty Description | 1 Year Manufacturer |

## Product Details

- **Brand:** SportDOG
- **Color:** Red
- **Item Display Dimensions:** 3.13 inches
- **Material:** Plastic
- **Pattern:** Solid

## Images

![SportDOG Brand FieldTrainer 425XS Add-A-Dog Collar for Stubborn Dogs - Additional, Replacement, or Extra Collar for Your Remote Trainer - Waterproof and Rechargeable with Tone, Vibration, and Shock - Image 1](https://m.media-amazon.com/images/I/61C2VZ16pZL.jpg)
![SportDOG Brand FieldTrainer 425XS Add-A-Dog Collar for Stubborn Dogs - Additional, Replacement, or Extra Collar for Your Remote Trainer - Waterproof and Rechargeable with Tone, Vibration, and Shock - Image 2](https://m.media-amazon.com/images/I/817m1pktC0L.jpg)
![SportDOG Brand FieldTrainer 425XS Add-A-Dog Collar for Stubborn Dogs - Additional, Replacement, or Extra Collar for Your Remote Trainer - Waterproof and Rechargeable with Tone, Vibration, and Shock - Image 3](https://m.media-amazon.com/images/I/81crXFXzKxL.jpg)
![SportDOG Brand FieldTrainer 425XS Add-A-Dog Collar for Stubborn Dogs - Additional, Replacement, or Extra Collar for Your Remote Trainer - Waterproof and Rechargeable with Tone, Vibration, and Shock - Image 4](https://m.media-amazon.com/images/I/81LftKIDnTL.jpg)
![SportDOG Brand FieldTrainer 425XS Add-A-Dog Collar for Stubborn Dogs - Additional, Replacement, or Extra Collar for Your Remote Trainer - Waterproof and Rechargeable with Tone, Vibration, and Shock - Image 5](https://m.media-amazon.com/images/I/912at1FrNjL.jpg)

## Frequently Bought Together

- SportDOG Brand FieldTrainer 425XS Add-A-Dog Collar for Stubborn Dogs - Additional, Replacement, or Extra Collar for Your Remote Trainer - Waterproof and Rechargeable with Tone, Vibration, and Shock
- SportDOG Brand FieldTrainer 425XS Remote Training Dog Collar, E Collar for Stubborn Dogs - Waterproof, Submersible Up to 25 Feet, Rechargeable Dog Training Collar with Remote Shock, Vibrate, and Tone
- SportDOG Brand FieldTrainer 425X/SportHunter 825 Add-A-Dog Collar, Remote Training Collar, Hunting Dog Collar - Waterproof and Rechargeable with Tone, Vibration, and Shock (Orange)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-23*