Up to 7 hours of playtime plus 2 hours with Playtime Boost
Waterproof and dustproof
Grab and goTake big J.BL Pro sound wherever you go. The bold, colorful J.BL Go 4 ultra-portable Bluetooth speaker fits in the palm of your hand, delivering clear, loud J.BL Pro Sound with rich, punchy bass. Its newly redesigned integrated loop makes it easy to bring anywhere, and the variety of colorways means you can choose one that fits your vibe. Plus it's waterproof and dustproof, so it loves to go outside. And up to 7 hours of playtime mean it will keep the good times rolling throughout a fun day trip or an evening chilling under the stars. Pair two Go 4s for stereo sound, or wirelessly connect multiple J.BL Auracast-enabled speakers for even bigger sound. Crank it up and let your music take you anywhere.
Transducer 45 mm /1.75”
Output power 4.2 W RMS
Frequency response 90 Hz – 20 kHz
Signal-to-noise ratio > 85 dB
Bluetooth® version5.3
Bluetooth® profile A2DP V1.4, AVRCP V1.6
Bluetooth® transmitter frequency range 2400 MHz – 2483.5 MHz
Bluetooth® transmitter power ≤ 9 dBm (EIRP)
Bluetooth® transmitter modulation GFSK, π/4 DQPSK
Battery type Li-ion polymer 3.23 Wh (equivalent to 3.8 V / 850 mAh)
Battery charge time 3 hours (5 V 1 A)
Music play time up to 7 hours (dependent on volume level and audio content)
