PetSafe Passport Dog Door Rechargeable Battery and Charging Station Agility Training waterproof transmitter can be conveniently

waterproof transmitter can be conveniently placed outdoors at the boundary

but it can also be mounted in a hallway when the walls don't line up

Set it on the counter to keep your cat from jumping up

simplest design on the market

Use at home or on the go

PetSafe Passport Dog Door Rechargeable Battery and Charging Station Agility Training waterproof transmitter can be convenientlyOptional rechargeable lithium ion battery and charging station for Passport Pet Access Smart Door. Features: Lithium ion Battery: 11. 1 VDC 2. 2 Ah 24. 42 Wh Power Adapter Input: 100 to 240 VAC 50 Hz to 60 Hz 0. 8 A Max Charger Output: 12. VDC 1. 1 A Charge Time: Less than 4 hours Includes one rechargeable lithium ion battery (additional batteries sold separately)