1. Color: black，red
2. Material: ABS
3. Dimensions: about 17 x 5 x 11 cm / 6.69 x 1.96 x 4.33 inches
4. Battery: 6V battery (not included)
5. Maximum adjustable range: about 50cm / 19.68 inches
6. Train your dog to use this ring to control barking.
7. Barking vibration can be accurately triggered (cannot be activated by other dog barking).
8. Sound: A harsh buzzing sound is emitted to prevent barking.
9. Ultrasound: work by sending out ultrasonic signals, which can only be heard when the dog is barked.
10. Adjustable elastic collar to fit different dog sizes.