1.the device emits ultrasonic wave imitate the sound of male mosquitoes to drive away the female mosquito who bites people.
2. Outdoor use - suit for travel, fishing, camping, hiking and so on.
3. Body can pull out separate to put on, bag, hat, baby car,clothes, shoes etc.
4. Break away from harmful chemicals and toxic solvents, safe for human and pets.
5. Power supply: Button Battery LR44 including  (can replacement).
6. Sonic Frequency: 4 KHz
7. Effective area: Approx. 8 square meters
8. Color: 6 different color can be choose