Why doesn't Safari work?
Apple has chosen not to implement the Web HID API in Safari for privacy and security reasons. This is a fundamental limitation that cannot be worked around.
Pro Educator Interface Tool
Modern Web Interface for Dog Training Collar
Device Connection
Device not connected
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Dog System Configuration
Select how many dogs to configure
Instant Mode
Warning Mode Function
EZ-904-TX Only
This feature only works with 4-dog EZ-904-TX devices
Ready to connect...
Training Controls
NOW EDITING: DOG 1
Uncheck to unlock stimulation level on remote device
Range: 1-60
Range: 1-100
Browser Compatibility Issue: This application requires Web HID API support.
Supported browsers: Chrome 89+, Edge 89+, Opera 75+, or other Chromium-based browsers.
Not supported: Firefox, Safari, or older browser versions.
Additional Requirements:
Application must be served from a secure context (HTTPS or localhost)
Browser permissions must allow HID device access
EZ-900 device must be connected via USB
Troubleshooting Connection Issues: If you're getting "permissions policy" errors, try:
Opening this application in a new browser tab (not in an iframe)
Ensuring you're using a supported browser version
Checking that your EZ-900 device is properly connected via USB