Bluetooth version : V3.0

bluetooth distance: 10 m

SPL:　　　　　　　８８ｄB

IMP: 4ohm

battery endurance:　　4hours.

Frequency range: 80-18KHz.

JUSTONG technology co. was formed in 2006 with the sole intention of innovate and develop supperior quanlity for earphone,headphone and wireless equipment for mobile phone  computer and car etc.

Users in sound and wireless equipment application technology is our main focus. formed by Justong factory who was over 10 years of earphone ,headphone and wireless equipment manufacturing experience . Justong has been equiped with acoustic engeering knowledge,each AN-IND product is engineered to complaint with world class test solution. this is why we provide you facts and figures that simply few than other suppliers.

will do, Justong proudly supply the market with all necessary innovatively packaged earphone and wireless equipment.