Features:
Multi-dog training system, it can be expandable to three-dogs operation.
Range up to 600 meter.
3 modes for correction and training: Tone, Vibration and stimulation.
Train up to 3 dogs from the same transmitter (need purchase extra 2 receivers separately).
Free combination among tone, vibration and stimulation.
1-99 levels for each model.
3 group memories for each dog.
Big LCD digital for instruction.
With an antenna.
Suitable for most of dogs (from mild-mannered dog to stubborn dogs).
Easy to use and ergonomic transmitter.
Safe and effective.
Specifications:
Transmitter power supply: 1 * 6F22 9V Batteries (not include)
Transmitter size: 13 * 5.3 * 3.6cm
Transmitter weight: 69g
Receiver power supply: 2 * AAA batteries (not include)
Receiver size: 8.3 * 4.5 * 3.2cm
Receiver weight: 88g
Package size: 16.2 * 13.7 * 5.2cm
Package weight: 287g
Package include:
1 * LCD transmitter
1 * Receiver collars
1 * Black collar straps
1 * Shock testers
4 * Metal prongs
1 * Antenna
1 * User manual

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