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TEK 1.0- "What do the buttons on the Handheld Device and Collar Unit do?" - SportDOG® Netherlands (Holland)
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Amazon.com: SportDOG Brand TEK Series 1.5 GPS Tracking + E-Collar System - 7 Mile Range - Waterproof and Rechargeable - Tone, Vibration, and 99 Levels of Shock - Expandable to Locate and
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