XT89 earphone from Lenovo

The new XT89 headset from Lenovo Model: XT89 Color: Black Bluetooth version: 5.0 Transmission distance: 10 meters Earbud size: 10 mm Charging interface: Type C Battery capacity: 300 mAh (charging case), 40 mAh (earbud) Operating time: single earbud: approximately 3.5 hours, with charging case: approximately 24 hours Backup time: about 350 hours Packing list: 1 * pair of earbuds 1 * charging case 1 * charging cable 1 * user manual