Bluetooth XO X13

Model –X13
Manufacturer – XO (Threekey industuial (HK) Co.,Ltd)
Connectivity - Bluetooth V 5.1
Headphone charging time – 1 hour.
Case charging time – 2 hours.
Headphones only use time up to 3.5-4 hours.
Earphone battery – 2*30 mAh
Case battery -300 mAh
Headphones charging from the box with one charge 3-4 times