Features:
Stable technology, compatible with almost all audio devices that support .
Built-in microphone, noise cancellation technology enhances call audio transmission performance, clear sound transmission, and high-quality calls.
Hands-free call and multipoint connection, release your hands to ensure driving and connect two smartphones at the same .
Collar clip design, retractable cable technology, after your call, retract your cable with a push of a button (build-in 30cm cable).
Built-in 70mah can be rechargeable, long can provide to 5 hours of talk , about 5 hours of , and about 75 hours of standby .

Specification:
Model: K52
Version: 4.1
: 70mAh
Standby : about 70 hours
Talk : about 5 hours
: DC5V 1A
: about 2 hours
Frequency:
Color: , White
Item Size: 7*2.5*2cm/2.76*0.98*0.79in
Item Weight: 17g/0.6oz
Package Size: 17*9*3cm/6.69*3.54*1.18in
Package Weight: 70g/2.47oz

Package List: V9261S
1 * Headset
1 * USB Cable
1 * User Manual