Black slim design
High sensitivity on Mic.

Bluetooth® Specification:	V1.2 (Handsfree / Headset profiles)
Battery:	110 mAh
Standby Time:	Up to 150Hrs
Talk Time:	Up to 7 Hrs
Charging Time:	< 2Hrs
Operation Temperature:	-10°C to 60°C
Dimension / Weight: (without necklace)	78 x 16 x 21(L H W) / 9.4g