built-in battery, which is charged using a USB-micro USB cable (cable included).You can listen to music via Bluetooth (a signal at a distance of up to 10 m), from a microSD memory card, FM radio, you can connect headphones to the music player via an audio cable . Headphones also have a built-in microphone and can be used for talking on the phoneTo switch tracks, increase / decrease volume, answer a call, the control buttons are located on the headphones. There is also a color indicator.Headphones are securely fixed to the head with a soft vertical bow connecting their cups, so they can be used while jogging or other physical activity. The size of the brackets is adjustable.Bluetooth Headphones Celebrat A23  stylish and functional wireless headphones with good powerful sound. They are powered by a built-in battery, which is charged using a USB-micro USB cable (cable included).You can listen to music via Bluetooth (a signal at a distance of up to 10 m), from a microSD memory card, FM radio, you can connect headphones to the music player via an audio cable (cable included). Headphones also have a built-in microphone and can be used for talking on the phoneTo switch tracks, increase / decrease volume, answer a call, the control buttons are located on the headphones. There is also a color indicator.Headphones are securely fixed to the head with a soft vertical bow connecting their cups, so they can be used while jogging or other physical activity. The size of the brackets is adjustable.Bluetooth Headphones Celebrat A18      stylish and functional wireless headphones with good powerful sound. They are powered by a built-in battery, which is charged using a USB-micro USB cable (cable included).You can listen to music via Bluetooth (a signal at a distance of up to 10 m), from a microSD memory card, FM radio, you can connect headphones to the music player via an audio cable (cable included). Headphones also have a built-in microphone and can be used for talking on the phoneTo switch tracks, increase / decrease volume, answer a call, the control buttons are located on the headphones. There is also a color indicator.Headphones are securely fixed to the head with a soft vertical bow connecting their cups, so they can be used while jogging or other physical activity. The size of the brackets is adjustable