Bluetooth version V5.3
Stand-by time 140 days
Talk time 4 hours
Music playtime 5-6 hours
Charging time 1.5H
Charging voltage DC 5V
Frequency range 20-20000Hz
Transmission distance 10m-15m
Battery capacity 33mAh
Charging case 320mAh
BJBJ A90 Pro TWS Earbuds
3rd Floor, C Buliding,Yijietong Industrial Park, Hangcheng Avenue, Nanchang Community, Xixiang, Bao'an District, Shenzhen, China