G-Cord Wireless Bluetooth 4.1 Sport Headphones Sweatproof Noise Cancelling In-Ear Earbuds with Stereo Sound;

Amazing sound
Strong noise cancellation
Support Stream Music/Video/Audio (with A2DP&AVRCP)
HD stereo with clear sound, perfect for stealth listening music at work and in-car calling, clear sound quality

Neck-strap design
Neck strap secures earbuds fit in your ears in case of falling out when you are in working out
The earbuds are designed to rotate for adjusting angle and fit for ears in comfort

Multifunctional Button
The headphones is simply designed power button and volume button
Power button can control wireless, play/stop music just one clik and quick double click helps dial your phone's last number
Press and hold the MFB 3s or say "No" to reject a call etc

Compatible
Compatible with most of Bluetooth devices, including iPhone 6s 6 Plus, iPhone 6s iPhone6, iPhone 5s 5c 5 4s 4, iPad Mini iPad Air; Samsung S6 Edge+ S6 Edge S6 S5, Note 5 4 3, Galaxy Tab Tablets; HTC A9 M9 M8, Google Nexus smartphones, etc

Specification
Bluetooth standard: V4.1
Battery: 150mAh
Charging Time: About 1.1 hours
Talk Time: Up to 10 hours
Music Time: Up to 8 hours
Standby Time: 320 hours

You can get
1x G-Cord Bluetooth 4.1 Wireless Sport Headsets 
1x Micro USB Charging Cable
2x Eartips (S/M/L)
1x User Manual