s2 tws headset earphone bluetooth headphonesipx7 waterproof cordless with mic mini earbuds power bank for xiaomi sony iphone

function: for mobile phone,hifi headphone,sport,common headphone wireless type: bluetooth waterproof: no communication: wireless active noise-cancellation: yes support memory card: no plug type: usb is wireless: yes support app: no style: ear hook line length: none with microphone: yes resistance: 32 connectors: usb support apt-x: no sensitivity: 121±3db model number: s2 tws headset brand name: tohayie vocalism principle: dynamic frequency response range: 6-24000hz volume control: no