Garmin Pro 550 Plus Simple, Customizable Training Expand your training for up to 3 dogs¹, using up to 18 levels of continuous and momentary stimulation, tone and vibration for effective training across the board. Operation is simple, with the stimulation level/vibrate selection dial at the top of the transmitter for easy access. Use the switch to quickly select a dog for on-the-spot training and to see where it is in the field. Keep up with Your Pack When your dogs are on the move, you can quickly glance at the built-in display to see which direction they’re moving and how far they’ve gone from a range of more than 2 miles. The Garmin PRO 550 Plus uses GPS and GLONASS satellite reception to lock in on the position of each collar. Built to Go the Distance The rechargeable battery lasts up to 24 hours, so you can maintain your training and tracking throughout your hunt, and then some. The tried-and-true tube-shaped design of our PRO Series is easy to operate one-handed, so you can keep your eyes on your pack at all times. Both the transmitter and compatible TT 15 dog device collar are designed to withstand the toughest environments. On the Road or on Your Wrist With so many available compatible Garmin devices, you can keep an eye on your dogs wherever you go. Pair with fēnix® series watches for tracking from the wrist while you’re on foot. Or pair with Garmin DriveTrack™ series in-vehicle dog trackers and GPS navigators to track from the road. Features Handheld Physical & Performance Unit dimensions, WxHxD: 1.8" x 11.4" x 2.1" (4.5 x 20.8 x 5.4 cm) Display size: 0.91" x 0.91" (2.3 x 2.3 cm); 1.28" (3.26 cm) diagonal Display resolution: 128 x 128 pixels Weight: 8.9 oz (253 g) Range: more than 2 miles Multi-dog compatibility: 3 Battery: rechargeable lithium-ion (included) Battery life: 24 hours Water rating: IPX7 Floats: yes Handheld Features Correction levels: 18 Momentary/continuous correction: Both (low, medium and high) Vibration correction: yes Tone correction: yes (dedicated button) Accessory unit activation: yes Dog Device Unit dimensions, WxHxD: 3.1" x 1.7" x 1.7" (7.8 x 4.4 x 4.4 cm) Weight: 3.5 oz (98 g) Battery: rechargeable lithium-ion (included) Battery life: up to 40 hours Water rating: 1 ATM Floats: no Collar compatibility: 1.0" (2.5 cm) Dog Device Features Beacon lights: yes Vibration: yes Accessory unit activation: yes BarkLimiter™ mode: yes Tone: yes PRO 550 Plus Bundle PRO 550 Plus handheld TT 25 dog device with a rechargeable Li-ion battery pack 1" black collar strap AC adapter Split adapter cable Charging cable Contacts kit (short and long) Manual