1. Silicon Gel Bluetooth headset can be pared two phones 
2. Dust control 
3. Activating reactive oxygen 
4. Sterilization .

An  “anion generator ”  built in the YO Oxygen Bar Headset  upgrades the low voltage to direct current  negative high 
voltage by boosted circuit, and releases abundant  electrons (e-) with high speed via discharge  probe point’ s  high direct
voltage.  All the electrons are caught by oxygen (O2) and form as anions. Most of anions are oxygen ions and  hydration
hydroxyl ions. Such kind of negative oxygen ions or negative oxygen ionic groups are with sound biological activity, so it 
is usually called as oxygen bar. 

Dust control:  the anions which bare negative charge neutralize with the floating dust which bares  positive  charge, 
and make it to be deposited automatically; 
Activating reactive oxygen:  the anions can effectively activate the oxygen molecules in the air and make it to be 
more reactive and easier to be absorbed by human body, which effectively helped to prevent  “air-conditioner 
disease”; 
Sterilization: a little ozone can be released by the anion generator when it releases the anions. V iruses and bacteria 
can be adsorbed and killed when  both ozone and anion  work together . Such kind of function is more effective for 
preventing the harm of second-hand smoking and more friendly to the environment.