Sony SRS-XB31

Test 07/2019

  • Sony SRS-XB31 - testing
  • Sony SRS-XB31 - front
  • Sony SRS-XB31 - back
  • Sony SRS-XB31 - boxed
  • Sony SRS-XB31 - anschluesse
  • Sony SRS-XB31 - detail
  • Sony SRS-XB31 - licht
  • Sony SRS-XB31 - tasten
Test seal: Sony SRS-XB31, Rating 9.2

last modified: 19.09.2019, 9:54

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All rating criteria details:

Sound quality 40%
Range of functions 20%
Battery Performance 20%
Handling 10%
Volume 5%
Design 5%
Tested by: Tim



The Sony - SRS-XB31 Bluetooth Speaker is a party speaker and an outdoor speaker in one device. An outdoor speaker is the device because of its IP67 certification, which means that the device is protected against water. In addition, the device can be placed very flexibly horizontally and vertically. The device is a party loudspeaker because of its high bass and the illuminated light strip, which is definitely an eye-catcher.


  • Waterproof for up to 30 minutes under water
  • Party mode with over 100 loudspeakers possible
  • Operation via App possible
  • Use as power bank possible
  • Very good battery life


  • Charging cable without power adapter included

360° View

Eye-catching party loudspeaker, which is also perfectly suitable for outdoors.

The Sony - SRS-XB31 Bluetooth Speaker stands out with its coloured LED lights that adapt to the music. The loudspeaker also stands out with its outdoor suitability. Not only can the loudspeaker withstand rain without any problems. Thanks to the IP67 degree of protection, the device can be underwater for up to 30 minutes. This makes the loudspeaker perfect for the beach or boat trips. Of course, the speaker is also dustproof. If the smartphone or tablet is empty, the device can also be used as a power bank via a USB connection. The flexible speaker stand is also perfect for outdoor activities. The speaker can be set up flexibly, both vertically and upright. This is not true for all devices.

It is annoying that the scope of delivery does not include a real power supply, but only a micro-USB cable. Thus an external power supply has to be used. In our test we tested a model in the color black. Furthermore, the speaker is offered in the colours blue, yellow, white and red.

 SRS-XB31 Bluetooth speaker
The SRS-XB31 speaker has its own app


The Bluetooth speaker can be controlled with four buttons:

  • On/ Off switch: Press and hold to turn on or off the device.
  • Pause/ Playback: If the button is pressed briefly, the title is paused and if the button is pressed again, the current title is resumed. Pressing the button twice will skip the current track.
  • Louder: If you press the button briefly, the loudspeaker becomes louder, if you hold it longer, the next track is played.
  • Quieter: Press briefly to make the speaker quieter, hold longer to play the previous track.

The connections of the Sony SRS-XB31 Bluetooth Speaker
The connections of the Sony SRS-XB31 Bluetooth Speaker


The loudspeaker can be charged via a micro USB input. Most Android devices also have such an input. The charging cable of the Android devices can therefore also be used for charging the loudspeaker.

The speaker also has an AUX input for an AUX cable (not included) and a suitable device such as a TV or computer.

Waterproof, dustproof and usable as a power bank - a real outdoor loudspeaker

With the help of a USB input, the speaker can be used as a power bank and can easily charge smartphones and tablets.


The matching Sony music center app can be downloaded free of charge from Apple's AppStore and the Google Play Store. One of the most interesting features is the light bar. In the app you can switch between different modes like "Chill", "Rave" or "Randsom Flash" for the light strip. Further functions concern the sound, the current battery capacity or the Bluetooth connection. There are different sound modes: Standard, Xtra Bass and Live Sound. You can also set up party mode in the app so that several Sony speakers can be paired.

A noticeable feature is the light strip around the speaker
A noticeable feature is the lightbar around the speaker


The loudspeaker can be controlled and paired easily with any Bluetooth-capable device. The Bluetooth range is sufficient to set up the speaker in the adjacent room. The Bluetooth range can also be higher if no objects interfere between the loudspeaker and the music source.

Banner Amazon Music first month for free
Banner Amazon Music first month for free

The most exciting feature of the speaker is the light strip, which is used in this model as in the other speakers of the SRS-XB series. Different modes can be set via the app or analogue via a small button located near the connectors. It is also possible to deactivate the light strip completely. This is recommended if you want to safe battery. According to Sony, the maximum battery life is up to 24 hours. Of course, this depends on the volume and the light bar, among other things. If the light bar is switched on, the promised 24 hours will by far not be reached. In general, values around 20 hours are reached.

Sound quality

The loudspeaker from Sony is very heavy on bass and thus orientates itself on the devices from JBL. The sound quality is also more suitable for loud party music than for quiet music with lots of details, as these can quickly get lost. However, with the help of the app, the sound can still be greatly changed, so that the speaker can also adapt well to the taste of your own ears.

We have evaluated approx. 100 customer reviews on the Internet. In summary it can be said that about 90 percent of the buyers are satisfied (4 stars) or even very satisfied (5 stars). Partially (2 stars) or completely dissatisfied are about 5 percent of the users. The average score at the time of the evaluation was 4.6 out of 5 stars.

Summary: 90% positive and 5% negative ratings

The following points were positively noted:

  • Different settings for the sound
  • Waterproof and dustproof
  • Stylish LED Strips

The following points were noted negatively:

  • Poor battery life
  • No real power supply included in the scope of delivery
Manufacturer Sony
EAN 4548736072954
Accessories Micro-USB cable
Party mode ✔ mit bis zu 100 Lautsprechern
Waterproof IP67 against immersion in water up to 30 minutes by 1m
App included
Bluetooth version 4.2
Power supply connection Micro-USB without power supply
Length of the power cable 50 cm
Battery life 20 hrs
Accessory products B07D6GRYNW
Weight 870 g
Depth 8,1 cm
Height 8,7 cm
Width 23,1 cm
Manual language DE, EN, IT, FR, NL, ES, SE, FL, DK, NO, PT
Quality of instructions Good
Packaging Good
Quality impression Good
Scope of delivery Speaker, USB charging cable, safety instruction, quick start guide, manual
Music control without smartphone
Wireless charging -
Sound quality
Range of functions
Battery Performance

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Overview: Bluetooth Speaker

How do you like this product?


Does the speaker automatically turn on again when a device wants to play music?
No, the loudspeaker must definitely be switched on and this can only be done by pressing the corresponding button.
Can I play music and charge the battery at the same time?
Sure, you can listen to music and charge the speaker at the same time.
Can the light be switched off?
Yes, the light strips can be deactivated.


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