EP51 Sports BT Earphones, Light, Designed for Sports.

Feature:
Magnetic design, Easy-to-Wear--Thanks to the magnetic design, you can easily wear the earphones on your neck as a stylish accessory when you're not using them.
Light as A Coin--made of silicone, ultra-light plastic, and aviation-grade aluminum. These lighten each earphone to the weight of a small coin. Wearing such light earphones guarantees unprecedented comfort.
Enjoy Sports--Equipped with the BT chip well-known for high stability and connectivity, EP51 supports BT 4.0. The transmission distance is 10m, freeing you from the burden of carrying your phone.
Nano-coating Protects Earphones from Sweat--The waterproof nano-coating and special waterproof design protect EP51 from water and sweat, which tend to corrode earphones, so you can enjoy your favorite tunes worry-free.
More than just Background Music--EP51 integrates HiFi micro-speakers, a unique audio cavity structure and DSP digital signal processing technology, which delivers stable bass, clear middle, and broad treble.
Robust and Resilient--The highquality material improves the tensile strength of EP51. The OFC high-purity cable cores feature outstanding conductivity and are wrapped by soft and skin friendly TPE material.
Full Recharging in 2 Hours, 15 Days' Standby--EP51 can be fully recharged in two hours. Based on lower-power micro-power technology, the battery can power talk time or music play for six hours.
Wide Compatibility--The omni-directional high-sensitivity microphone ensures smooth and clear communication. The wire control is compatible with Android and OS systems.

Specifications:
Item: BT Earphone
Material: Silicone & plastic & Aviation-grade Aluminum
Type: In-Ear
Color: Red
Impedance: 16Ω
Wire diameter: 2.0mm
Sensitivity: 88dB
Max power: 10mW
Wireless transmission distance: 10m
Speaker: 8.6mm
Battery life: At least 6 hours
Frequency: 20Hz~20KHz
Recharging time: 1.5~2h
Total length: 550mm
Wire controller: Three-button type
BT version: BT4.0+EDR
Microphone: -42dB
Product weight: Approx.15.3g / 0.5oz
Package size: Approx.15.5 * 12 * 5cm / 6.1 * 4.7 * 2in
Total weight: Approx.249g / 8.8oz

Package list:
1 * Earphone
1 * Charge Cable
3 * Pair of Earbud Cap
1 * Manual