Battery life: about 60 hours (standby mode) Battery capacity: 260mAh Product size: 28.5x74.2x18.3mm Product color black Rated voltage: 3.7V Negative ion concentration: 120 million Product material: PC Product net weight: 29.8g Packing size: 89x43x102mm Specifications: andBREATHE CLEANER SAFER AIR: Using cutting-edge technology to emit negative ions and push airborne pollutants away your breathing zone Electrostatic Purification radiates a 3-foot orbit of safer air in any direction, creating a sphere of protection against harmful pollutants. andGOODBYE FILTERS: Say goodbye to the hassle of replacing filters Uses the latest technology in air purification Using electrostatic purification, emits millions of negative ions into the air forcing dangerous pollutants out of your sphere of clean breathable air. andMY BATTERY DIED andndash OH WAIT ITandrsquo S RECHARGEABLE: This portable personal purifier operates 60 hours on single charge ensuring your protection against airborne pollutants. andTAKE IT ON THE GO: The perfect travel accessory for those who love to explore without exposure to unsanitary air model includes a proprietary conductive lanyard which is adjustable.Wear it around your neck and have a sphere of breathable clean air you go. andSPECIFICATIONS: Power Boost Technology provides 9 times more cleaning power Breathe 875 percent cleaner air, certified to filter more pollutants than any of its closest competitors Silent operation, no noisy fans or motors No filters to change USB charging cable, lanyard. Package Included: 1 x air purifier 1 x lanyard 1 x charging cable