1. 100 levels of static shock stimulation and vibration and beep
2. Easy-read Digital LCD Display Remote Control
3. Rechargeable & Waterproof training collar receiver
4. Rechargeable remote controller
5. Expandable for two dogs with extra Collars Receiver (optional)
6. A Nylon collar fits dog neck sizes 8 to 21 inches
7. Working Range Up to 300 Meters