This is Tmart own brand sport earphone, works fine and sound quality is good.
FEATURES
Latest Bluetooth 4.1 with CSR, high fidelity sound quality
Compatible with Bluetooth enabled devices, such as for iPhone, iPad, tablet PC, etc.
IPX4 sweatproof design
CVC6 noise cancelation
Built-in mic allows hands-free phone calls with all controls right on the earpiece
It likes a necklace around your neck, and not easy to fall off
A good choice for listening music, watching movie, chatting online, etc.
Very easy to store into your clothing or bag, easy to carry and convenient to use whether you′re into running, gym workouts, jogging, hiking etc.
Specifications
Headphone Style In-ear
Microphone Yes
Impedance 32Ω
Color Blue
Weight 0.60oz / 17g
Bluetooth Bluetooth 4.1 with CSR
Noise Cancelation CVC6
Playtime Up to 7 Hours
Standby Time 130 Hours
Sweatproof IPX4
Battery Capacity 110mAh
Dimensions (11.81 x 2.17 x 1.26)" / (30 x 5.5 x 3.2)cm (L x W x H)
Material Plastic
Compatible with All Bluetooth Devices - iOS Devices Such as iPhone 4, 4S, 5, 5S, 6, 6S, 6+ and Also with iPad and i-watch Models; Android Cell Phones Like Samsung, HTC, Sony and Other Devices
Package Includes
1 x Wireless Earbuds
1 x USB Charging Cable
3 x Ear Buds
3 x Earflaps
1 x Wire Spooler
More Tmart selected items on http://www.tmart.com/promotion/Tmart-Selected.html.
Thanks a lot.