● Supports wireless music, one-seg, and calls with a mobile phone equipped with Bluetooth. Stamina type for long time calls and music playback. Bluetooth version 5.1 specification. (It is also compatible with the traditional version and can be used with the traditional version of the phone. Equipped with noise and echo cancellation function. You can make calls with clear sound quality that is easy to hear from the caller. AVRCP compatible with music remote control functions (play/pause/forward/backward). Volume button included. You can adjust the volume of the phone call/music play/one-seg. Battery Service Profile. The remaining battery level is displayed on the iPhone LCD screen. (iPhone only) The multi-point function allows you to wait for two mobile phones at the same time. Compatible with Siri (Siri) equipped with the iPhone operating system. Equipped with redial function. Easy operation allows you to redial previous calls. Automatic power off function to reduce battery consumption. Can be charged while standby. Built-in safety circuit It protects the product from abnormal voltage. USB charging cable included. You can also charge it with a USB port such as a computer. Can be used for both right and left ears. Comes with removable ear hook Earbud pads in ear shape with S/M/L size.