The Sony ULT FIELD 1 in Black is a portable Bluetooth speaker from the ULT POWER SOUND series, designed for those who want a punchy audio experience on the go. It features a dedicated woofer measuring approximately 83 mm x 42 mm and a 16 mm tweeter, working alongside a passive radiator to deliver deep sound. You can further enhance the low end using the ULT bass boost function, making it a great companion for outdoor gatherings or active environments. Built for durability, this black speaker is IP67 rated, meaning it is fully waterproof and dustproof, and it also includes shockproof construction to handle accidental drops. The compact frame measures 206 mm x 77 mm x 76 mm and weighs around 650 g, making it easy to carry via the included multi-way strap. A single charge provides up to 12 hours of playback, while the built-in omnidirectional electret condenser microphone allows you to take clear calls with integrated echo cancelling.