Garmin - Pro 550

Unit dimensions, WxHxD: 1.8" x 8.2" x 2.1" (4.5 x 20.8 x 5.4 cm)
Weight: 7.8 oz (221 g)
Range: 1 miles
Multi-dog compatibility: 3
Autorise bark correction mode: yes
Battery: rechargeable lithium-ion (included)
Battery life: up to 80 hours
Water rating: IPX7
Floats: yes