T91B

Bluetooth chip: AB5656
Battery capacity: 30mAh for the earphone, 250mAh for the charging case with protection board
Battery life: Music: approximately 4 hours, Call: approximately 3 hours, Standby: approximately 60 hours
Bluetooth version: V5.4
Product colors: Black, White, Blue, Beige
Functional highlights: Play/Stop songs, Volume adjustment, Last song recall, Incoming call answer/decline, Incoming call number display, Voice control, Speaker: F13mm 25Ω, Sensitivity 118+3db
Microphone: Silicon microphone, Sensitivity -42+3db
Charging port: Type-c
Accessories: Data cable