Features: [Advanced BT Technology]: BT 4.2 Technology with A2DP/AVRCP protocol support, ensure transmitting strong signal in high quality and high speed, offering high-fidelity stereo music. [3D Stereo Sound]: DSP technology cancels the high and low frequency noise from the external environment effectively. You can get high quality hands-free phone conversation even on the street or inside a shopping mall. [Long Standby Time Fully Compatibility]: Built-in rechargeable Lithium battery lasts up to 10 hours of talking time. And universally compatible with most BT-enabled devices. [Practical Design]: You can use the main and auxiliary earbuds as you wish. You can choose the main earbud when you are driving or working, also both earbuds can be used when you are woring out or enjoying music. [Portable Soft]: Less than 7 grams per earbud, never feel heavy no matter how long you wear them. Portable design brings you much convenience. Note: Please use 0.5-2.4A charging jack, do not use fast ch Discounted at only: US$ 12.99 
