The remote controller and receiver of the machine apply automatic matching technology,and the receiver will make sound when the batteries are installed in the receiver,then press any key of the remote controller and the receiver will make continuous sound,which shows it has successfully received the signal from the remote controller,and the remote controller may work normally.

Feature:

Ideal for call or training pets
2 levels of vibrations and whistle
Receiver uses 2pcs AAA 1.5v battery
Uses vibration instead of static stimulation
150 yard range.
Transmitter uses 1pcs 23A 12V battery

Transmitter Specs:

1. Height: 86mm Width: 37mmDepth: 16mm
2. Weight:40g
3. Frequency:433.825MHz
4. Red light on face
5. Screw off battery cover and belt clip on back

Receiver Collar Specs:

1. Height: 32mmWidth: 55mmDept: 30mm
2. Weight:75g
3. Collar: W 3/4"" -- L23""
4. Green Light on side"

Package includes:

"1 x New Remote Control Training Collar
1 x Wireless Transmitter
1 x Detachable Belt (color may vary)
1 x Screwdriver and screw set
1 x User manual"