Stylish and comfortable original design Bluetooth headset with SD card support and audio cable included. The built-in microphone provides high-quality sound transmission. Adjustment of the headphones to the size of the head, as well as the swivel earphones, will allow you to wear the headphones with maximum comfort. The Micro-SD card slot turns the headphones into an MP3 player - listen to music without connecting to a smartphone or laptop. The control keys on the headphones will allow you to answer a call or switch the song, as well as adjust the volume without taking your phone out of your bag. With a 10m range, you can talk on the phone or listen to music while moving freely around the room. If your headset has run out of battery - just connect the audio cable (included in the package) to it and continue listening to music, or charge the headset from the USB port. Battery life - up to 40 hours. Standby time - up to 200 hours. Charging time - 2 hours.