Features:
1 for 2 Dogs Training Collar, can train 2 dogs at the same time.
Remote training collar with LCD display.
100 levels of static.
100 levels of vibration.
A tone button activates a tone on the receiver.
With LED light and LED indicator.
Range up to 300 meter.
No external antenna on collar.
Suitable for most of dogs (from mild-mannered dog to stubborn dogs).
Easy to use and ergonomic transmitter.
Very safe and effective.

Specifications:
Transmitter power supply: 2 * 4LR44 Batteries (include)
Transmitter size: 12.5 * 4.9 * 2.8cm
Transmitter weight: 44g
Receiver power supply: 2 * AAA batteries (include)
Receiver size: 7.1 * 3.2 * 3.8cm
Receiver weight: 50g
Package size: 16.5 * 13.5 * 4.6cm
Package weight: 310g

Package include:
1 * LCD transmitter
2 * Receiver collars
2 * Black collar straps
4 * AAA batteries
2 * 4LR44 Batteries
2 * Shock testers
4 * Metal prongs
1 * User manual