Main Features:

1.Retractable neckband design.Especially suitable for sporting situation.
2.Portable and space-saving
3.Amazing clear sound.The overall voice quality for calling sounds natural and works great.
4.Cutting-edge Design Concept,be ergonomically.Comfortable Wearing Experience.
5.Unparalleled Battery Life.Built in high capacity rechargable lipo battery.
6.Pair headset with 2 mobile phones.
7.Answer&End call/Incoming call vibration remind.
8.Power Promt.Each time turning on this headset,it will report headset battery power remaining.
9.Voice Dial.Unlock the mobile phone and double click the volume “+” to launch teh voice dial,and then just speak teh people name you want to call.This function can work only if your mobile phone support it.
10.Mobile phone anti-lost indicator.

Specification:
Correpond With: Bluetooth 4.1
Working Distance: >=10m
Charging Time: >= 3.5 hours
Talk Time: >=18 hours
Music Time: >=16 hours
Standby Time: >=300 hours
Weight:>= 67g

Package included:
1 x SX-991 Neck / Head Wear Sports Style V4.1 Bluetooth Stereo In-ear Headset
1 x USB Charging Cable(about 88cm)
2 Pairs of Earbuds
1 x User Manual