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Specification
| Brand | Sony |
| Product Name | ULT FIELD 7 Wireless Portable Speaker |
| Model Number | SRS-ULT70 |
| Speaker Type | Portable Wireless Speaker with X-Balanced Speaker Unit |
| Sound Modes | ULT POWER SOUND (ULT1 and ULT2 settings) |
| Speaker Size | Approx. 114 mm x 114 mm (woofer), Approx. 46 mm (tweeter) |
| Bluetooth Version | Version 5.2 |
| Supported Codecs | SBC, AAC, LDAC |
| Frequency Transmission Range | 20 Hz – 20,000 Hz (with 44.1 kHz sampling) |
| Frequency Range | 2.4 GHz band |
| Water and Dust Resistance | IP67 rating |
| Battery Life | Up to 30 hours of playback time |
| Charging Port | USB Type-C |
| Quick Charging | 10 minutes of charging provides approximately 3 hours of playback |
| Power Consumption | Approx. 45W (during charging) |
| Input Terminals | Stereo Mini Jack (IN), USB A (for charging connected devices), Mic/Guitar Input (6.3 mm) |
| Compatible Smartphone App | Sony | Music Center / Fiestable |
| Wireless Features | Party Connect (up to 100 compatible speakers), Stereo Pair |
| Dimensions (W x H x D) | Approx. 512 mm x 224 mm x 222 mm |
| Weight | Approx. 6.3 kg |
Highlights
The SRS-ULT70 features the ULT button, which engages two distinct sound modes: ULT1 for deep, low-frequency bass and ULT2 for powerful, punchy sound. This is powered by Sony’s X-Balanced Speaker Unit, which utilizes a non-circular diaphragm to increase sound pressure and reduce distortion, resulting in clearer audio and deeper bass performance even at high volumes.
Designed for long-lasting playback, the speaker provides up to 30 hours of battery life on a single charge with the ULT sound mode turned off. When the battery is low, a quick 10-minute charge provides approximately 3 hours of playback time. This ensures reliable performance for extended outdoor use or events.
The SRS-ULT70 is built with an IP67 rating, making it both waterproof and dustproof, allowing for use in diverse environments including near pools or at the beach. The unit features a portable design with a convenient carry handle, weighing approximately 12.1 lbs (5.5 kg) and measuring roughly 12.4 x 20.1 x 11.8 inches (316 x 512 x 300 mm), facilitating easy transport.
The speaker supports Bluetooth version 5.2 with SBC, AAC, and LDAC codecs for high-quality wireless audio streaming. It includes a dedicated microphone input and a guitar input, allowing the device to function as an amplifier. Additionally, the Party Connect feature enables the synchronization of up to 100 compatible Sony speakers via Bluetooth for a unified audio experience.
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Sony SRS-ULT70 ULT FIELD 7 Wireless Portable Speaker
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