Track and train your dogs with the Alpha 200i system, featuring inReach technology, a sunlight-readable 3.5" capacitive touchscreen and user-friendly, six-button design. This system is designed to help make tracking and training simple, accessible and fast. inReach technology helps you keep loved ones updated when cellphones can't. Navigate every hunt with the best in Garmin mapping and sensors. User-replaceable battery lasts up to 20 hours; up to 15 hours with inReach technology enabled.