This mini no-bark trainer has a built in rechargeable battery system.

Features

Newly redesigned Digital System with Micro-processor
Adjustable Collar fits small to large dogs.
Ni-MH 4.8 Volt Rechargeable Battery System
System delivers 1/2 second corrective stimulation
Automatic three-second safety delay
Built in Magnetic ON/OFF system
Digital Numeric Display shows 8 different intensity levels
Vibration Sensor only picks up vocal cord vibrations
eliminating unnecessary “shock” from extraneous noises or dog’s tags
Data Memory System saves last used intensity setting
Completely Waterproof
1 year warranty