Hi,
I have a BV9000pro, but I lost data cable and usb to audio jack cable, where can I order new cables because I thing the connectors have to be slightly longer than standard cables?

You can find them on platforms like Aliexpress.

USB (Is the same like for bv7000Pro and bv8000Pro): https://mbest.aliexpress.com/detail/32807576180.htm
OTG (Is the same like for bv7000Pro and bv8000Pro): https://mbest.aliexpress.com/detail/32807588090.htm
Set with EU plug (same like for bv8000Pro): https://www.aliexpress.com/item/Blacvkiew-BV8000-Pro-Charger-with-cable-Original-EU-Europe-standard-Charging-Adapter-accessory-For-BV8000-Pro/32830083186.html
Jack apapter: Don't found it to buy as a spare part until now but I will write here as soon I will.