Sony SRSULT10B Black: Portable Speaker with Big Bass Power

Robust bass and a compact build make this portable speaker an ideal pick for music enthusiasts who demand performance while on the move. Designed for both home and outdoor use, it withstands the elements and produces clear, dynamic sound in any setting. The ULT POWER SOUND series puts extra energy into low-end frequencies, so every track feels immersive. As a portable audio solution, the SRSULT10B Black finds the balance between impressive sound, durability, and intuitive controls.

What Makes This Speaker Stand Out

Instant bass boost is available at the touch of a dedicated ULT button, while side passive radiators maximize the impact of deep tones. With its Sound Diffusion Processor (DSP), music fills a space—not just directly in front of the speaker. Carrying options are flexible thanks to a multi-way detachable strap, allowing you to hang or secure the speaker almost anywhere.

Performance and Portability — Designed for Active Lifestyles

Take it on hikes, to picnics, or for the daily commute—this model combines sound quality with the ruggedness needed for any adventure. Easily accessible controls, including the tactile bass button, keep playback simple in all conditions.

• Water, Dust & Shock Protection: IP67 rating — rely on it by the pool, beach, or hiking trail
• With up to 12 hours of battery life, your music can last all day, and a quick 10-minute charge provides up to 3 hours of playback.
• Weight: 650 g — carry comfortably by hand or with the included strap

Sound Customization and App Integration

Use the Sony Music Center app to adjust EQ settings and access features such as stereo pairing or instant ULT bass mode. Echo-cancelling hands-free calling and Bluetooth 5.3 simplify daily use. Pairing two speakers wirelessly is possible for a wider soundstage at events or movie nights.

• Bass Boost: ULT button — push for enhanced bass presence
• Connect quickly to Android and iOS devices with Bluetooth 5.3 (SBC/AAC support).
• Expanding your sound for parties is easy—wireless stereo pairing lets you link two speakers.

Everyday Usability and Practical Features

Intuitive buttons, a built-in microphone for calls or voice assistant, and USB Type-C charging keep the SRSULT10B Black ready for daily life. The mesh-fabric exterior improves grip and guards components inside. You can secure the detachable rope strap to bags, bikes, or even a boat rail, and passive radiators ensure the music stays full at low volumes.

• Dimensions: 206 x 77 x 76 mm — compact for easy packing in a backpack or picnic basket
• Microphone: built-in for hands-free use — suitable for conference calls or quick chats
• Charging is handled via USB Type-C, making powering up modern and hassle-free.

Who Should Choose the SRSULT10B Black?

Ideal for students, travelers, and outdoor fans, this model suits anyone needing reliable sound in a durable form. Color choices and attention to detail mean it doubles as a fashionable accessory for day-to-day or adventures—whether it’s a pool party or a solo trek, the SRSULT10B Black delivers your soundtrack on demand.