Wireless BT 4.1 Headphones Mini Invisible Earphone In-ear Stereo Music Headset Earpiece USB Charging Base Hands-free w/ Microphone

Wireless BT 4.1 Headphones Mini Invisible Earphone In-ear Stereo Music Headset Earpiece USB Charging Base Hands-free w/ Microphone

This BT headphone is specially designed for music and sports lovers, which features advanced BT 4.1 technology, built-in high-grade microphone & speaker, hands-free function and lightweight mini design. It will offer you amazing experience and you can greatly enjoy your favorite music when doing sports.

Features:
Mini and Invisible:

Super mini size headphone, invisible and 4g lightweight design is suitable for working, driving, running, climbing and other sports.
BT Connection:
BT 4.1 Technology ensures transmitting strong signal in high quality and high speed and offering high-fidelity stereo music.
Hands-free with Mic:
High-sensitivity microphone grasps the detail of voice, ideal for in-car calling or working use, setting your hands free.
Simple Operation:
With one multifunctional button, easily control playing / pausing, next track, answering / rejecting / ending an incoming-call.
USB Magnetic Charging Base:
40mAh headphone battery ensures about 4 hours of working time. USB magnetic charging base can automatically adsorb the headphone and charge.

Specifications:
BT: 4.1
Transmission Distance: 10m (no obstacle)
Frequency Response Range: 20Hz-20KHz
Impedance: 16Ω
Sensitivity: 90±3dB
Battery Capacity: 3.7V / 40mAh
Music Playing Time: 3-4 Hours (depends on music volume)
Talk Time: 5-6 Hours
Charging Time: 1-2 Hours
Standby Time: about 120 Hours
Color: Black
Headphone Size: Approx. 2.3 * 2.0 * 1.3cm / 0.90 * 0.78 * 0.51in
Headphone Weight: Approx. 4g / 0.14oz
Package Size: Approx. 7.1 * 7.1 * 2.5cm / 2.79 * 2.79 * 0.98in
Package Weight: 19g / 0.69oz

Package List:
1 * Earphone
1 * USB Charging Base
1 * Earcap
1 * User Manual (English / Chinese)