Portable Wearable USB Personal Mini Negative Ion Necklace Air FreshenerBlack black

Feature: 1. Purify the air, negative ions have negative charges, indicating negative electricity. When negative ions encounter dust and other particles in the air, the positive and negative ions will gather together, so as to agglomerate dust and other substances, increase the weight of dust, and make it fall on the ground. 2. 2.5 hours of long‑term operation, charging only takes 20 minutes. Under sufficient electricity, it can operate for about 5 hours for a long time, and can also breathe fresh air when going out. 3. The weight of the whole machine is only 27g, and the design of hanging neck makes it easy to wear. 4. 15 seconds fast purification, let you breathe the fresh air of nature, about 3000000 nanoanions per cubic metre. 5. Purifying air by negative ion, against many harmful substances in the air, multiple deep purification, keep you air fresh and healthy. Specification: Condition: 100percent Brand New Item Type: Air Purifier.Size: Approx. 50 x 50 x 10mm 2 x 2 x 0.4inNegative Ion Concentration: 3000000m³Battery Capacity: 180mahWeight: Approx. 27gRated Voltage: DC 5V Package List: 1 x Air Purifier1 x USB Cable1 x Manual