Wireless Headphones - with microphone, True Wireless earplugs, closed construction, Bluetooth 5.2, supports AAC, aptX and SBC, active noise control (ANC), track shuffle, taking calls, with volume control, IPx7 certification - waterproof and sweatproof, frequency range: 20 Hz-22000 Hz, sensitivity: 108 dB/mW, impedance: 32 Ohm, converter: 9,2mm, battery life of up to 28 hr(s) (8 hr(s)+20 hr(s))