BASS are wireless earphones with 5.0 bluetooth. The storage case is also a charger (300 mAh), which makes the BASS practical and easy to take everywhere. With autonomy up to 6h and charging time of 2h. Supplied in a black gift box with a USB/USB-C charging cableBASS are wireless earphones with 5.0 bluetooth. The storage case is also a charger (300 mAh), which makes the BASS practical and easy to take everywhere. With autonomy up to 6h and charging time of 2h. Supplied in a black gift box with a USB/USB-C charging cable