Wireless Headphones - with microphone, True Wireless earplugs, closed construction, Bluetooth 5.2, supports AAC, aptX and SBC, active noise control (ANC), power bank, track shuffle, taking calls, with volume control, IPX4 certification, frequency range: 5 Hz-21000 Hz, converter: 7mm, battery life of up to 35 hr(s) (7 hr(s)+28 hr(s))