Product Name: 2020 Amazon Best Sellers OEM Manufacturer Portable Low Noise Necklace Negative Ion Air Purifier Model NO.: AP-Mini01 Material: ABS LCD Display: Without LCD Display Electric Tension: 5V Certification: CE, RoHS Power: USB, Battery, Electrical Transport Package: Export Carton Specification: 61*56*20mm Origin: Made in China Product Description 2020 Amazon Best Sellers OEM Manufacturer Portable Low Noise Necklace Negative Ion Air Purifier1). Remove dust, pollen, smoke - PM2.5, micro particles, secondhand smoke pollution;2). Release the negative oxygen ion high concentration (2 ~ 4million) -- - "air vitamin", make our breathing more comfortable, more pure and fresh air.3).Product specification:Necklace air purifierSpecificationMaterialABS+PCVoltage & Current5V0.15ANegative Ions2 ~ 4million/cm³Working Hours>48HoursProduct Size55*17*60mmN.W.0.03kgG.W.0.088KGoneSet Packing Size90*90*27mmPackage for Bulk Order45*30*25cm/140sets/12.6kg4). Adavantage:Small volume, built-in lithium battery, can be recharged.5).Usage IntroductionWorn on the neckor placed in a nearby table, chair.6).How to use the air purifier ?On the air purifier,there is a touch switch. It can control "on" and "off".FAQQ:What is our min quantity?A: We also accept small quantity,such as 100 pieces can be accepted.Q:Could I get a sample before making order?A:Yes, our company offers samples for quality test or other business purposes, but we kindly ask you to pay for samples and the freight.Q: How long will it take to deliver the goods?A: For sample and small order,we recommend use the courier,like UPS,TNT, DHL, EMS FedEx etc.For bulk orders,we will do the shipment by sea.Others as your required.Q:What are the terms of payment you offer?A: T/T, Western Union, Money Gram and cash only.Q:Does buyer need to pay any charge when receive the parcel?A:Yes, the customtax, but depends on your country policy.Q: How about your quality control?A:Our QC teams will test and confirm the quantity one by one before packaging, and ensure thequality before shipment.