1. The charging bin is designed as separate type
2.  Earbuds will work automaticly once taking out
3.  Double earbuds calling phone
4. Siri Function 

Bluetooth Version: 5.0
Chip : Realtech
Battery Capacity:  Earphone 60mAh
Charging box: 1600mAh
Rechargeable earbud : 15 times
Distance: 10M
Double earbuds Play Time: 5-6H
Single earbuds Play Time: 6-7H
Charging Time: 40mins
Standby Time: 300H
Active noise-cancellation function
Charging for android phone & iPhone / Type-C / Siri
Support used for 2 bluetooth devices at the same time 

Bluetooth Version: 5.0
Chip : Realtech
Battery Capacity:  Earphone 60mAh
Charging box: 1600mAh
Rechargeable earbud : 15 times 
Distance: 10M
Double earbuds Play Time: 5-6H
Single earbuds Play Time: 6-7H
Charging Time: 40mins 
Standby Time: 300H
Active noise-cancellation function
Charging for android phone & iPhone / Type-C / Siri
Support used for 2 bluetooth devices at the same time