OLATHE, Kan.--(BUSINESS WIRE)--Garmin International Inc., a unit of Garmin Ltd. (NASDAQ: GRMN), today announced the addition of the T 5 mini and TT 15 mini to its best-selling range of Astro® and Alpha® GPS dog tracking and training systems. The T 5/TT 15 mini are designed to fit smaller breed dogs. “The new T 5 mini and TT 15 mini are the ideal solution for sporting dog owners who run smaller breed dogs – from dachshunds to beagles to brittanys,” said Dan Bartel, Garmin’s vice president of wor