From the manufacturer
Blaupunkt BTW15 are equipped with a 10mm large dynamic driver, which brings powerful bass, clear vocals and crisp high tones, making you feel like in the center of the stage and feel more realistic music.
LED Power Display: Our Bluetooth Headphone with Smart LED Digital Display, You can easily to know the Battery Consumption on Charging Case.
TurboVolt Charging: After one fully charged, the earbuds can be used continuously for 30 hours with charging case. With USB-C fast charging design, the charging case can be fully recharged within a short time (@50% volume)
Ergonomic Design: The earbuds are lightweight, safe and comfortable fits your ears perfectly. We use the lightest materials so you won’t feel uncomfortable even if you wear them on your ears for a long time
Smart Touch Control: Installed with high-sensitivity touch sensors that smart enough to detect every touch. Softly tap on the earbud to skip songs, answer/reject calls and voice assistant without picking up your phone