1. Three modes of outdoor, indoor and sleeping to repel mosquitoes, meeting the needs of most scenarios in daily life. 2. Compact design, easy to carry, suitable for placement in a variety of different scenarios. 3. Matching lanyard, convenient for hanging in a backpack or balcony at home and other scenarios. 4. Rechargeable, can be fully charged in tens of minutes. A full charge can be used continuously for about 2-3 days. 5. Battery capacity: 90mAh 6. Sound wave frequency: 34Hz-70KHz 7. Charging interface: Type-C
