




Power up your music anywhere with the Sony ULT Field 3 Wireless Bluetooth Speaker (SRS-ULT30), designed to deliver massive bass in a compact and rugged body. Featuring the dedicated ULT button, this speaker boosts low frequencies instantly, giving your music deeper impact and richer sound. Whether you’re at home, outdoors, or traveling, the ULT Field 3 delivers powerful audio with clarity and punch.
Built for adventure, this speaker comes with an IP67 waterproof, dustproof, and rustproof rating, making it perfect for beaches, poolside parties, and outdoor trips. Enjoy up to 24 hours of battery life, plus quick charge support that gives up to 2 hours of playback in just 10 minutes. With hands-free calling, Party Connect, customizable 7-band EQ, and a stowable shoulder strap, the ULT Field 3 combines performance, durability, and portability in one stylish package.
| SPEAKER TYPE | Woofer/Tweeter |
| NUMBER OF SPEAKER | Tweeter Unit: 1, Woofer Unit: 1 |
| SPEAKER SIZE | Tweeter Unit: Approx. Φ 20 mm, Woofer Unit: Approx. 86 mm x 46 mm |
| SOUND MODES | ULT POWER SOUND: 1, Volume Step: 50, custom EQ band: 7 |
| SOUND FUNCTIONS | Sound Field Optimization |
| DIMENSIONS (W X H X D) | Approx. 256 mm x 113 mm x 79 mm |
| WEIGHT | Approx. 2.65 lb |
| HANDS-FREE FUNCTION | Yes |
| COMMUNICATION SYSTEM | Version 5.2 |
| COMPATIBLE PROFILES | A2DP, AVRCP, HFP, HSP, SPP |
| SPEAKER ADD FUNCTION | Stereo Pair,Party Connect |
| SUPPORTED CODECS | SBC, AAC |
| FREQUENCY TRANSMISSION RANGE | 20 Hz–20,000 Hz (44.1 kHz sampling) |
| FREQUENCY RANGE | 2.4 GHz |
| INPUT AND OUTPUT TERMINALS | USB Type-C® (DC IN / OUT only) |
| BATTERY LIFE | Approx. 24 H |
| POWER SUPPLY | DC, 5 V / 9 V, Internal rechargeable, USB Type-C® |
| USB POWER PORT FOR SMARTPHONE | Yes |
| POWER CONSUMPTION | Approx. 27 W (at 9 V 3.0 A) |
| WATER PROTECTION | IP66 / IP67 |
| POWER CONSUMPTION (STANDBY MODE / LOW POWER MODE) | 0.3 W |
| POWER CONSUMPTION (NETWORKED STANDBY MODE) – TERMINALS | 0.5 W (Bluetooth® function, all terminals and networks connected) |












