Baseus Air Nora W2 True Wireless Earphones 

Standby time: About 300 hours
Music time: 4 hours (70% of the volume)
Music time with a charging case: About 24 hours
Earphone rated input: DC5V = 35 mA
Charging case rated input: DC5V = 350 mA
Earphone rated consumption current : 9mA
Charging case rated current consumption: 110mA
Charging time: About 1.5 hours
Frequency response range: 20Hz-20kHz
Charge interface: Type-C
Suitable for: Compatible with all wireless devices