Garmin Alpha 300i Handheld Advanced Tracking and Training Handheld with in

Features a vivid sunlight-readable 3.5” capacitive touchscreen display and a button-operated, dog-focused design for quick, minor adjustments
Easily set up and monitor up to 20 dogs with your compatible dog collars from up to 9 miles away (depending on your dog collar) with up to a 2.5-second update rate
With an Outdoor Maps+ subscription, you have access to a wide variety of premium mapping content that is regularly updated and wirelessly delivered directly to your Alpha 300i handheld when connected to a wireless network
Dog list and group management let you keep non-paired dog information in the handheld for easier setup
Send interactive SOS alerts and two-way messaging via the 100% global Iridium satellite network with inReach satellite technology (active subscription required. some jurisdictions regulate or prohibit the use of satellite communication devices. it is the responsibility of the user to know and follow all applicable laws in the jurisdictions where the device is intended to be used)
Communicate directly with Garmin ResponseSM [global search and rescue coordination center] when there’s an emergency
Includes preloaded TopoActive maps, downloadable satellite imagery, and a built-in 3-axis compass and barometric altimeter
User-replaceable battery lasts up to 55 hours. up to 50 hours with inReach satellite technology enabled
Triggers 18 levels of stim, tone or vibration when paired with your training-enabled collar
Backward compatible with select existing collars and other Alpha handheld-compatible devices. transfer location data between compatible Garmin devices