Features:

1. Bluetooth 4.1 version, faster connection and stable signal, transmit dynamic and pure sound in high speed.
2. Independent cavity structure, 10mm magnetic speaker, acoustic echo processing, put you personally into music.
3. Ergonomic design, lightweight, mini shape, easy to carry and more comfortable for long-time wearing.
4. One button control, there is one button to achieve paly, pause, switch, and etc. Simplified design.
5. Fast charging, USB charging, hidden charging port in the top of the earphone. Approximately 1.5h for full charge.
6. It support simultaneous connection with two Bluetooth devices.

Specifications:

General Specification
  Brand   USAMS
  Color   Black, White
  Wearing Type   In-ear
  Material   Aluminium Alloy + ABS
Technical Parameters
  Microphone   Yes
  Wired Control   Not support
  Bluetooth Version   4.1 
  Transmission Distance   10m
  Receive Sensitivity   80dB
  Impedance   16Ω
  Frequency
  Response
  20-20kHz
  Battery Capacity   45mAh, 3.7V
  Charging Time (h)   1.5h
  Taking Time   Approx. 4h
  Music Time (h)   Approx. 3h

Package  Included:

 1* USAMS LO Bluetooth Earphone
 1* USB Cable
 1* Manual