INTRODUCING ULT FIELD 3: Impactful, room-filling sound from a portable design that can be tailored to your liking in the Sony | Sound Connect app, Push ULT Button for the ULT POWER SOUND experience POWERFUL SOUND, PUNCHY BASS: High-performance woofer and tweeter produce impressive bass and crisp detail; dual passive radiators add depth and impact, Tailor to your liking with the app’s 7-band EQ HIT THE BUTTON - FEEL THE BASS: When you push the ULT Button, bass is boosted even further whilst sound pressure is increased to produce addictive, energetic ULT POWER SOUND at home, or on the move TAKE THE MUSIC WITH YOU: This Sony speaker is compact to slip into a bag or you can use the detachable shoulder strap, Designed for versatility, the ULT FIELD 3 works horizontally and vertically POWERFUL SOUND, ALL DAY AND NIGHT: Enjoy 24-hour battery life - the ULT FIELD 3 even doubles as a powerbank to charge your devices via USB, Quick charge provides 2hr playback from just a 10min charge ANYWHERE, ANY WEATHER: No need to worry about rain - the ULT FIELD 3 is IP67-rated, offering protection against water (including sea water) and dust, It’s rustproof and shockproof too CLEAR SOUND, EVEN IN NOISY ENVIRONMENTS: With Sony’s Sound Field Optimisation, this Bluetooth speaker detects noise and automatically adjusts its audio to remain clear and detailed, in every scenario CRYSTAL-CLEAR CALLS: Use the ULT FIELD 3 as a speaker phone to make hands-free calls, With Echo Cancelling technology, two people can talk at the same time without cutting each other off ULTIMATE CONNECTIVITY AND CONTROL: Use buttons or your smartphone for easy control, Party Connect links up to 100 compatible Sony speakers via Bluetooth; Stereo Pair creates a powerful stereo system