Product name: T4
Product model: In1945
Pairing name: QCY-T4
Chip brand: Yuan Rui
Bluetooth version: V5.0
Compatible system: ios / Android / Windows
App support: Android version 5.1 and above
Communication distance: 10 meters (Unobstructed and open environment)
Use time: talk about 4 hours; music about 4.5 hours
Support protocol: HFP / HSP / A2DP / AVRCP / AAC / SBC
Charging compartment capacity: 380mAh
Charge times of charging compartment: about 4 times with both ears