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Sony SRS-XB31 Portable Wireless Bluetooth Speaker - Black - SRSXB31/B

$149.99 $54.99 (You save $95.00)

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Give your party a boost with the XB31 wireless speaker. Give the party a boost with EXTRA BASS. LIVE SOUND Mode uses unique speakers to give a three dimensional music festival atmosphere. Party Booster adds more fun to the occasion, and the IP67 waterproof design takes the party anywhere.

  • Feel the power of EXTRA BASS with Live Sound Mode for an immersive 3D sound experience
  • Waterproof and dustproof IP67 design for worry-free usage
  • Build energy with a multicolored line light and flashing strobe
  • Listen all day and night with up to 24 hours of battery life
  • Connect and add more speakers (up to 100) with Wireless Party Chain
  • Pick it up and play with the lightweight, portable design
  • Add an extra speaker for stereo sound
  • Keep the party going with the interactive Party Booster
  • Connect and stream music easily with Bluetooth and NFC, plus LDAC
  • Customize and control from your smartphone with Sony Music Center


Amplifier/Receiver Features

  • Amplifier Type: S-Master

Bluetooth Spec

  • Communication System: Version 4.2
  • Frequency Range: 2.4GHz band Frequency Range(A2DP): 20 Hz - 20,000 Hz(44.1 kHz sampling)
  • Hands-Free Function: Yes
  • Modulation: FHSS
  • Power Output: Bluetooth Specification Power Class1
  • Supported Content Protection: SCMS-T
  • iAP over Bluetooth: Yes
  • Effective Range: 30 m
  • Interface: A2DP/AVRCP/HSP/HFP/SPP
  • Supported Audio Format(s): SBC/AAC/LDAC

Input and Output Terminals

  • Others: micro USB
  • Stereo Mini Jack(IN): Yes
  • USB A Terminal: Yes


  • NFC: Type-A


  • Auto Power OFF: Yes
  • Battery Capacity: 2700mAh
  • Battery type (Internal): Li-ion
  • Bluetooth Standby: Yes
  • Micro USB charge: Yes
  • Power Type: DC
  • Power Voltage: DC 5V
  • USB Power port for smartphone: Yes
  • Battery Charging (Approx): Charge time: 5h
  • Battery Life (Approx): 24 h

Satellite Speaker Unit

  • Diameter of Speaker Unit(Satellite Speaker): 48 mm
  • Speaker Impedance (Satellite Speaker): 4Ω


  • Bass Control: Yes
  • Clear Audio+: Yes
  • DSEE: Yes
  • Preset Equalizer: Extra Bass/Standard
  • Treble Control: Yes
  • custom EQ band: Bass/Mid/Treble


  • Net Material: Fabric
  • Speaker Type: Full range

Weights and Measurements

  • Dimensions (Approx.): Main Unit: Approx. 231 x 87 x 81 mm Individual Package Dimension 267 x 141 x 114 mm (WxHxD)
  • Weight (Approx.): 890 g

In The Box

  • USB Cable
Complete in Box.
Manufacturer Refurbished units have been professionally restored by a manufacturer or manufacturer-approved vendor to the exact manufacturer specifications. Units may show signs of light use. Units may be shipped in non-retail packaging.
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