Redmi Buds 4 (White)

Connectivity: Bluetooth v5.2, wireless and USB-C charging
Operating System: iOS, Android, Windows
Weight: 4.5g (headphones), 55g (with case)
Battery: up to 6 hours (headphones), 30 hours (with box)
Earbud input parameters: 5V⎓ 100mA
Case input parameters: 5V⎓ 450mA
Operating distance: 10m
Speaker impedance: 16Ω±15%
Color: White