Product Name: Mi True Wireless Earbuds 2s Gaming Version – Black.

Specification
Brand: Xiaomi
Model: 2S
Type: TWS (True Wireless)
Design: In-Ear
Bluetooth: Version: 5.0
Effective distance: 10 meters
Protocols: HFP / A2DP / HSP / AVRCP
Capacity: 46 mAh (each)
Charging case capacity: 600 mAh
Autonomy in playback mode:
Up to 4 hours (a single charge of the headphones)
Up to 12 hours (with all charges in the case)
Headphone charging time: 1.5 hours approx
Charging time of the case: 2.5 hours approx