Overview:

Easy setup via wireless pairing, no more digging and burying wires.
One button transmitting signal level adjustment from 1-100 for customizing area coverage.
A clear digital display shows the current transmitting signal level.
Supports controlling multiple dogs simultaneously with one transmitter.
Each receiver comes with 2 sets of metal extension contact probes Suitable for all types of dogs, small medium and large with neck circumstance up to 25”.

Specification:
Material: ABS plastic+TPU
Power adapter: US plug
Adjustable signal level: 1-100
Remote control range: up to 150 meters in radius
Compatible pet neck circumference: 0-25”
Water-resistance level of collar: IP67

Package Content:
As the SKU picture shows