Feature:

• This item imitates the souds of dragonfly wings' vibration to repel mosquitoes because dragonfly is the natural ememy of mosquito.
• Different working times to repel:2 hours/4 hours/8 hours
• Easy to carry with your baby or children

Usage:

1. Press once for the first time,the sound will last for 2 hours and red light flshing every one second.
2. Second press,it will last for 4 hours.
3. Third press, 8 hours.
4. After fourth press,it will stop working.