Sell Aviche Mini Necklace Air Purifier M1 best price

Aviche Mini Wearable Necklace Personal Air Purifier with USB Product Specification Product Name: Necklace Personal Air Purifier Product Model: M1 Color : Dark Black Negative Ions (output) : >20million/cm3 Negative Ions(5cm) : >8million/cm3 Noise : <15dB Effective Area: 1m3 Usage : Air Traveling, Home, Office, Ward of Hospital, Classroom, Bus Size ( L x W x H) : 80 x 37 x 24 cm Net Weight : 50 grams Battery : Built-in Rechargeable lithium-ion battery Charge Current : 200 mA Charge Time : 3-4 hours Running Time : 30-35 hours Battery Capacity : 650 mAh Power : <1w Cycle Life : >500 times Origin : China