Sony / SRS-XB23 BC Bluetoothスピーカー

Your smartphone's sound will be reborn. High-quality sound and deep bass expansion, both vertically and horizontally.

Wireless Speaker, Black

Expand your smartphone's sound. Enjoy high-quality sound and deep bass in both vertical and horizontal orientations.

■ High-quality sound and powerful bass thanks to the X-Balanced Speaker Unit

Equipped with a newly developed approximately 42 x 51 mm asymmetrical full-range speaker unit, the ""X-Balanced Speaker Unit."" Despite its compact body, it achieves high-quality sound, high sound pressure, and powerful bass. Furthermore, it features an ""EXTRA BASS"" mode to enhance the bass, allowing you to enjoy deep bass beyond its size. It also incorporates Sony's advanced high-quality sound technologies, including the high-quality digital amplifier technology ""S-Master,"" ""DSEE"" which effectively compensates for high frequencies often lost in compressed audio sources, and ""ClearAudio+"" which realizes recommended sound settings. Enjoy your favorite music even more with Sony's signature high-quality sound.

■ High-quality sound in both vertical and horizontal orientations

Equipped with a newly developed algorithm for a mono mode that delivers high-quality sound and deep bass even when placed vertically. Enjoy music anywhere, even in cramped study desks, bathrooms, or kitchens, without worrying about placement. Even when placed vertically, the sound spreads sufficiently, so you can enjoy powerful, bass-heavy sound even when listening to music from a water bottle holder. Of course, it also supports stereo mode in horizontal orientation. Using the free MusicCenter app, you can easily switch between vertical and horizontal orientations on your smartphone, allowing for flexible use depending on the situation.

■ ""DSEE"" Reproduces Compressed Audio Closer to the Original Sound

""DSEE"" effectively compensates for high frequencies often lost in compressed audio, reproducing them clearly. It plays compressed audio from music streaming services and other sources with a wider soundstage closer to the original. Even with increased compression, there is minimal sound quality degradation, allowing you to enjoy natural sound that is less fatiguing to listen to.

■ Supports a Wide Range of Audio Codecs

Supports the high-quality codec ""LDAC?"". Achieves high-quality Bluetooth playback with up to approximately 3 times (*) the amount of information compared to conventional methods. It also supports the iPhone's high-quality codec AAC, so you can enjoy music stored on your iPhone in high quality.

■Waterproof, dustproof, and rustproof, usable not only in the bathroom and kitchen, but also at the beach and outdoors. Long battery life ensures worry-free use.


Waterproof (*1) allows you to enjoy music in the bathroom and kitchen. Dustproof (*2) and rust-resistant, it can be used at the beach and outdoors. IP67 (*1) (*2) compliant. A 4-hour charge provides 12 hours of playback in STAMINA mode (*3) and 10 hours in EXTRABASS mode (*4). Enjoy worry-free use without worrying about battery life.


*1 Waterproof performance is defined as the speaker remaining waterproof even when submerged in 1 meter of water for up to 30 minutes (equivalent to IPX7).

*2 Protected against dust ingress from dust testing (equivalent to IP6X).

*3 When using in STAMINA mode with volume at approximately half. You need to switch the sound mode from the factory default settings. Please refer to the instruction manual or help guide for instructions on how to switch modes. The actual usage time may differ from the stated time depending on usage conditions such as volume, music playback, and ambient temperature.

*4 When using EXTRA BASS sound mode (factory default setting) and volume at approximately half. Actual operating time may vary depending on usage conditions such as volume, music playback, and ambient temperature.

■Speaker Section

Speaker Type: Approx. 42mm x 51mm (Full-range) x 2

Enclosure Type: Passive Radiator

■Amplifier Section

Maximum Output Power: 14W (7W + 7W)

■Bluetooth

Communication Method: Bluetooth Standard ver. 5.0 *1

Output: Bluetooth Standard Power Class 1

Line-of-Sight Range: Approx. 30m

Frequency Band: 2.4GHz Band

Modulation Method: FHSS

Supported Profiles *2: A2DP, AVRCP, HFP, HSP

Supported Codecs *3: SBC/AAC/LDAC

Supported Content Protection: SCMS-T

Transmission Bandwidth (A2DP): 20Hz-20,000Hz (at 44.1kHz sampling)

■Microphone Section

Type: Electret Condenser

Directional Characteristics: Omnidirectional

■Power Supply and Other Features

Power Supply: Lithium-ion battery

Charging: USB Type C

Power Consumption (AC Power): -

Battery Life (Bluetooth Connection): Approx. 12 hours (STAMINA mode) *5 / Approx. 10 hours (EXTRABASS mode) *6

Maximum External Dimensions (Width x Height x Depth): Approx. Φ76mm x Height 218mm

Weight: Approx. 580g

Accessories: USB Type C cable (1), Strap (1)