Zerodis Air Purifier Necklace, 5V Portable Ionizer Bolivia

Power Source: Electrical Installation: Portable, Necklace Wearable Certification: CE Capacity (CFM): 20 Power (W): 1 Voltage (V): 5 Brand Name: AVICHE Model Number: M1 Application: Home, Office, Ward of hospital, Car, Neck Wearable, Travelling Function: Release negative ions to remove Smoke, PM2.5 Size: L80xW37xH24mm Negative Ion Generator: 20 millions pcs/cm3 Power supply: Built-in Rechargable Lithium battery Rechargeable: Rechargeable by USB Running time: 35-40h Charging time: 3-4h Batter Lifecycle: 500 times Large battery: This Air Necklace is a high efficiency, and energy-saving, more than 80 hours of battery life Because of its working principle, it will definitely produce sound, but the sound level is acceptable.