1. Model: KY100A 2. Function: In addition to formaldehyde, and kill bacteria, no consumables, no noise. 3. Power supply method: USB 4. Rated frequency: 50 (HZ) 5. Control mode: Key type 6. Working principle: Negative ion 7. Negative ion concentration: 120 million ions/cm3 8. Battery capacity: 700mAh 9. Negative ion brush head: 1 10. Carrying method: Hanging neck necklace8. Applicable environment: Home, car, outdoor
