Is Sleepbuds 2 charger dual voltage

[user10]

Is the Sleepbuds 2 charger dual voltage?  Can I charge them in Europe with just a power adapter or do I need a voltage converter?  I want to charge them in a country that has 230 V.

Bose product name  Sleepbuds 2

Country   USA

Firmware Version  N/A

App Version  N/A

What devices were you using that were affected and what version are they on iPhone SE ver 14

Detailed description of the issue and steps to reproduce  Want to charge sleepbuds 2 in a country with 230 Voltage

What environment do you experience the issue in? N/A

When did you start to experience the issue? Did it work correctly previously?  They work find in the USA

Any troubleshooting steps you took  N/A