original lenovo xt91 wireless bluetooth headphones smart touch control gaming headset stereo bass with mic noise reduction tws earphone

brand name: lenovo model number: xt91(qt81) bluetooth version: 5.0 style: headphone certification: none vocalism principle: dynamic control button: yes communication: true wireless volume control: yes sensitivity: 98db wireless type: bluetooth is wireless: yes max output: 10mw line length: 0m support app: no function: for mobile phone function: sport number of drivers: 2 impedance range: up to 32 ω connectors: type c accessories lists: 2* bluetooth earphones 1* charging case 1* usb cable 1* user manual 3* earphone cups (s, m, l size)