Portable Neck Hanging USB Rechargeable Negative Ion Air Purifier Formaldehyde PM2.5 RemovalBlack

Feature: 1. Mini portable air purifier with hanging rope, suitable for office, bedroom, outdoor and other places. 2. It can filter out harmful substances in the air and release high active small particles of negative oxygen ions. 3. Remove second?hand smoke, pollen, PM2.5, formaldehyde, etc., and purify the air in the breathing zone. 4. The noise at work is low and silent, less than 30 decibels, so that your sleep, work and study will not be disturbed. 5. Equipped with fence air outlets, can better circulate and discharge air and help better improve air quality. Specification: Condition: 100percent Brand New Item Type: Air Purifier Material: ABS Color: White, Black (Optional) Input: 5V 1A Working Current: 0.2A-1.3A Working Power: 0.5W Battery Energy: 500mAh3.7V (1.85Wh) Weight: Approx. 96g-97g / 3.39oz-3.42oz Product Size: Approx. 6x5x3cm / 2.4x2.0x1.2in . Package List: 1 x Air Purifier1 x Manual1 x USB Cable1 x Hanging Rope Note: 1.Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding.2.Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.