Sony wireless Bluetooth headphones-Earbud style-Built in microphone-Voice technology - noise suppression and echo cancellation functions for superior conversation sound quality - Basic remote control operation (play, stop, skip, power) of music player functions via Bluetooth connection-Bluetooth version 2.1 + EDR - higher quality audio with less interference, lower power consumption and easy connection-Standard USB charging-Blue-11 Hours talk time-3 Sizes of earbuds - RBT100CXBLU
