Battery capacity: 1000 mA
Bluetooth version: Version 4.1
1> on/off
2>Mode switching
3>Pause / Answer
4> -
5> ＋
6>microphone
7>Card mode
8>Audio input mode
9> charging
10>microphone
If you want to know more about the product（details+price）, please send an email to sales@pcb-hero.com , and then we can talk in detail.
Attached our company profile and website link for your reference.
https://www.pcb-hero.com/collections/all-products
Thank you for your time.
For the product specification, pls refer to the pic
