RoG® Gen IV GPS beacon for Garmin TT15 and T5 GPS collarsGive Your Garmin GPS Collars a Second Life! The Garmin GPS units enjoy a formidable reputation for their reliability, performance, and durability. Put to the test during hunting and outdoor activities, the GPS beacon on the Garmin TT15, TT10, or T5 collars are nonetheless subject to wear and tear despite their resilience. Fortunately, the modular aspect of these VHF tracking classics allows you to maintain them at a lower cost, without necessarily