Main Features:● Wireless binaural stereo earbuds, left and right ear channels separated, HiFi sound effect● Left and right ears can be used separately ( mono ) or in pairs ( stereo )● CSR Bluetooth chip, dual-mode Bluetooth version 4.2, using the 2.4G Bluetooth band● Special magnetic charging base, built-in 5200mAh Li-ion battery● Built-in high s...