JBL Boombox 4 JBL Boombox 4, This speaker elevates the listening experience by delivering massive JBL Pro Sound with the deepest bass, now featuring AI Sound Boost technology which analyzes music in real-time to maximize power with less distortion. It offers up to 34 hours of playtime (28 hours plus an extra 6 hours with Playtime Boost) and an IP68 waterproof and dustproof design, making it ready for any adventure. For a wider sound stage, you can connect multiple speakers using the new Auracast™ feature. It also includes two selectable Bass Boost settings (Deep or Punchy) to match your vibe and supports lossless audio playback via its USB-C port. Wherever you go, the eco-friendly materials—incorporating recycled plastic and fabric—will help to make the world a little greener. JBL Boombox 4 Features, Specifications Brand JBL Model Name Boombox 4 Size 51 x 26 x 21 cm / 20 x 10 x 8 inches Weight 5.89kg Audio Specs Frequency response transducer (Hz): 37Hz – 20kHz Output Power (AC mode) – 2 x 65W RMS Woofer, 2 x 40W RMS Tweeter (Battery mode) – 2 60W RMS Woofer, 2 x 40W RMS Tweeter Connectivity Bluetooth Control and Connectivity Specification Bluetooth profiles: A2DP 1.4, AVRCP 1.6 Frequency: 2.4GHz-2.4835GHz Bluetooth transmitter modulation: GFSK, π/4 DQPSK, 8DPSK Transmitter power: ≤ 14dBm (EIRP) Bluetooth version: 5.4 Features 3D Dolby Atmos: No JBL 3D PartyBoost: No Power Bank: Yes Waterproof: IP68 JBL One App Dustproof: Yes Rechargeable battery: Yes Charging Cable: Yes Wireless: Yes Notifications – Note: A subscription to a high-definition music service is required in order to listen to immersive music in Dolby Atmos. Please check subscription fees in your region. Battery Charging time (hrs)3 hours Maximum music playing time (hrs)Up to 28 hours (extendable to 34 hours with Playtime Boost)
