Features:
1. Healthy call
2. Oxygen bar: can release more than 3-10 million ions， make your driving more healthier;                                
3. Auto power on/off along with engine starts/stops;                 
4. Auto charging;                                                    
5. Auto pairing: can be paired with 2 phones， convenient for alternating use;                                                     
6. Auto call answer/hang up;                                         
7. Standard USB for phone/tablet charging;         
8. 6g/pc only with fashion design， smaller than a coin

Specifications:

Oxygen Bar Headset
Physical Dimension:23mm  diameter for headset; 85mm height for charger
Weight:6g
Chip mode:CSR BC8

Healthy Call  
Bluetooth:Bluetooth 4.0
Phone Call:Auto answer/hang up
Receiver distance:10 meters

Oxygen bar
Output voltage:1.5KV-3.5KV
Output power:!#!lt!*!1W
Anion concentration:300W-1000W/cm3

Phone charger
Input voltage:12V
Output voltage:5V
Output current:2A

Accessories:
Oxygen bar bleutooth headset *1
Manuel *1