1. Material: plastic
2. Power supply: 1 9V battery (not included)
3. Use ultrasound to drive off nasty dog barking
4. Can control dog barking within 15 meters
5. 3 sensitivity adjustment levels (15-30KHZ)
6. Two-color battery low battery reminder
7. Waterproof and durable, safe and effective
8. Weight: about 150g
9. Size: about 11.4x6x4.3 cm