SportDOG Field Trainer 425  825  875E Extra Collar Expand your system to multiple dogs or use as a replacement collar/receiver for the SD-425, SD-825 or SD-875E unit.

Features -

• DryTek Waterproof design technology
• Weighs only 3.3 ounces (including collar strap)
• Ergonomic, "SHAPED" collar/receiver design

Click here to Learn what makes SportDOG Brand® so great.

In an industry seemingly overcrowded with electronic dog training products, Radio Systems Corporation’s renewed venture into the sporting dog market with the creation of SportDOG Brand® in 2003 might have appeared to be driven only by misguided ambition. However, that was far from the case. SportDOG broad line of superior products is the result of focusing on a promise made to their customers on day one: Gear The Way You’d Design It®. The SportDOG Field Trainer 425S is yet another example.