Chip: A1524                                                                                                               
Bluetooth: V5.0 10 meters bt connection
Loudspeaker: 13mm/16Ω
Earbud battery: 30mAh                                                                                                 
Case battery: 500mAh                                                                                
Playtime: 6 hours                                                                                                              
Call duration: around 5 hours                                                     
Auto pairing
Multifunctional touch control                                                           
High definition calling
Type C 5V/2A input