JBL Boombox 3 Specifications and Review

Last updated: August 16, 2026

The JBL Boombox 3 ranks #21 out of 73 total Boombox Size Portable Bluetooth Speakers for sound quality. See Top Recommended Speakers By Attribute for all the top speaker suggestions.

Brand: JBL

#21 JBL Boombox 3: $349.95 Amazon

Pros: IP67 rated. 24 hour battery life (6.5 hour charge time). Doubles as a power bank. PartyBoost links up to 100 compatible JBL speakers. Three-way speaker system with subwoofer.

Cons: Dips in mid bass range which makes the bass sound undefined, bass boosted, peaky at 700hz, not quite as good mids and treble as the Blast.

Related speakers: JBL Boombox, JBL Boombox 2, JBL Boombox 4.

How it compares: Just above it: JBL Boombox 3 Wifi - $40 more. Just below it: Tribit Stormbox Blast 2 - $50 cheaper, 6 more hours of battery life.

AppNo
Aux InputYes
Aux Latency25ms
Bass Extension (-10dB)43Hz
Battery Life24 hours (Manufacturer specified)
Bluetooth CodecsSBC
Bluetooth Latency100ms
Built in MicrophoneNo
Digital Aux InputNo
Dimensions19" x 10.1" x 7.9" (482 x 257 x 200 mm)
Drivers1x 189mm subwoofer + 2x 81mm woofers + 2x 20mm tweeters
EQNo
FM TunerNo
IP RatingIP67
Max Volume110dB
MicroSD PlaybackNo
Microphone InputNo
Output Power180W AC / 136W battery
Party ModeYes (PartyBoost up to 100 speakers)
Power BankYes (USB-A)
Power InputAC Power cable
StereoYes
TWSYes
USB PlaybackNo
Weight14.8 lbs / 6.7 kg

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