Sony SRS-XB33 EXTRA BASS Portable Bluetooth Speaker
The Sony SRS-XB33 is a rugged portable wireless speaker designed for music indoors and outdoors. Sony specifies Bluetooth 5.0, EXTRA BASS and LIVE SOUND modes, an IP67 water and dust protection rating, USB-C charging and up to approximately 24 hours of battery life under specified conditions.
Key features
X-Balanced Speaker Unit
EXTRA BASS and LIVE SOUND modes
IP67 water and dust protection
Shock-resistant design
Bluetooth 5.0 with SBC, AAC and LDAC codec support
USB-C charging
USB-A power output for charging a compatible phone
Approx. 24-hour rated battery life under Sony test conditions
Sony Music Center and Fiestable app support
Firmware freshness
Sony released firmware version 5500 for the SRS-XB33 on 4 October 2025. It addresses an issue where the CHARGE indicator could remain illuminated and drain the battery after disconnecting the USB-C cable. Owners can check and apply supported updates through the latest Sony Music Center app.
FAQ
Can I use the XB33 outdoors? Yes. Its IP67 rating makes it suitable for many outdoor environments when used according to Sony's care guidance.
Can it charge my phone? Yes. Sony specifies a USB-A 5V/1A DC output for compatible devices.
Does it support LDAC? Yes, alongside SBC and AAC on compatible Bluetooth devices.
Is this Sony's newest portable speaker generation? No. Buyers comparing current Sony speakers should also consider newer ULT FIELD models, depending on preferred size and use.
