EP205 Portable Air Purifier Negative Ion Necklace Hanging Collar Purifier(Black)

1. Material: ABS, steel, aluminum
2. Voltage: 3.7V
3. Battery capacity: 200mAh
4. Power: 1W
5. Negative ion concentration: 1999W
6. Usable area: Within about 10 square meters
7. Weight: about 33.5 grams
8. Size: about 2.4x6.35 cm, the length of the lanyard is about 64 cm

Features:
1. Carbon fiber filter brush, 1999W release negative ion concentration, enjoy fresh air at any time
2. Running decibels below 20dB, quiet and low noise
3. One-key boot, long press for 2 seconds to start, simple operation
4. USB charging, can be connected to a computer, power bank, etc. for charging
5. Metal shell, wear-resistant and radiation-resistant