Description: - Personal Air Freshener -- This releases 1800-2000 million , these contributing ions will combine with pollutants and other un particles. High effectively purifying the surrounding air and pushing substances away . - Easy You can wear this portable purifier around your neck using its strap. Or it can be placed on the nightstand your bed. clipped design can make you put it on your collar, stable and infallible. - Long Working Time in 300mAh rechargeable battery, and saving, 24 hours of battery life on a single charge. The USB charging port can be charged by pc, laptop, , adapter, car. - No Noise -- This cleaner is very quiet during operation, and will not disturb you during work or rest. - Wide Application wear on your neck, hand, bag, collar, baby carriage, camping or on your desk that’s completely natural and to breathe.Specification: - Material: Plastic - Size:&;78x40x20mm/3.07x1.57x0.79inch - Battery Capacity: 300mAh - Voltage: DC 5V - Power: less - Control method: Button - : 2-3 hrsPackage Includes:1 Piece Purifier1 Piece USB Cable1 Piece LanyardNote:1. Please allow slightly error due to manual measurement.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.3. Wish you a wonderful on-line shopping!