Wireless Headphones - with microphone, True Wireless earplugs, closed construction, Bluetooth 5.2, USB-C, supports AAC and SBC, Ambient sound, voice Assistant, track shuffle, taking calls, with volume control, IPx7 certification - waterproof and sweatproof, frequency range: 20 Hz-20000 Hz, sensitivity: 118 dB/mW, converter: 12mm, removable cord length of 0,2m, battery life of up to 30 hr(s) (8 hr(s)+22 hr(s))