The Sony ULT Field 3 (SRS-ULT30) in White is a portable speaker from the ULT POWER SOUND series designed for those who want a powerful audio experience on the go. It features a passive radiator enclosure with an 86 x 46 mm woofer and a 20 mm tweeter, delivering a balanced sound profile that remains clear across different environments. Weighing approximately 1.2 kg and measuring 256 x 113 x 79 mm, this white device is easy to transport thanks to the included stowable shoulder strap. Built to withstand the elements, this speaker is both waterproof and dustproof, making it a reliable companion for outdoor activities within a temperature range of -5 °C to +35 °C. It includes an omni-directional MEMS microphone with a frequency range from 100 Hz to 10,000 Hz for hands-free communication. For added utility, the built-in lithium-ion battery can be charged via a USB PD compatible adaptor, and the USB Type-C DC OUT port allows you to charge other connected devices at up to 1.5 A.