QCY T4 true wireless mini invisible earbud in-ear headphones

Bluetooth version: V5.0
Compatible system: iOS / Android / Windows
App support: version 5.1 and later on Android
Communication distance: 10 meters (under barrier-free open environment)
Use time: about 4 hours of talk; about 4.5 hours of music
Support protocol: HFP/HSP/A2DP/AVRCP/AAC/SBC
Charging bay capacity: 380mAh
Charges in the charging bay: about 4 times for both ears

Product accessories: earphones and charging box
3 pairs of ear caps (S, M, L)
With earphones and ear caps
Micro USB charging cable*1