Garmin Alpha TT25 Dog Collar

Unit dimensions: (WxHxD) 3.2″ x 1.8” x 1.4” (8.1 x 4.5 x 3.5 cm)
Weight: 191.5 g for transmitter and antenna (without collar)
Battery type: rechargeable lithium-ion pack; user-replaceable
Battery life: Standard battery pack (included)
up to 68 hours using dynamic tracking (default)
up to 25 hours with location updates every 2.5 seconds
up to 84 hours with location updates every 2 minutes
Range: 14 kilometers
Interface: USB-C
Water rating: 1 ATM (10 meters)
Neck size with standard 1” collar strap: minimum of 24 cm in circumference
with flipped 1” collar strap: minimum of 16.5 cm in circumference
High-sensitivity GPS/Galileo receiver: yes
GPS antenna top-mounted, black
Stimulation/vibration/tone: yes
LED beacon lights: yes (multiple color options)
Flex band user-replaceable
Sleep mode: yes (Alpha® Series only)
Rescue mode: yes
Frequency mode: MURS
Replaceable collar straps: yes
Collar compatibility up to 2.54 cm
Automatic software updates Wi-Fi® technology (when charging and connected to a network)