Wireless Earbuds Air 99

Wireless effective distance: 10 metres
Audio signal to noise ratio: ≥90dB
Frequency response: 50Hz - 20KHz
Headset battery capacity: 25mAh*2
Charging case battery capacity: 250mAh
Music time: Approx. 5 hours (50% volume)
Talk time: About 4.5 hours (50% volume)
Charging time: About 1.5 hours for
headphones and 1.5 hours for storage