Short answer: the JBL PartyBox On-The-Go 2 Plus. It ranks #5 of 113 boombox speakers by sound quality, rated 4.4/5, at $349.95; the JBL Boombox 4 ranks #20, rated 4.0/5, and costs $549.95, which makes this an easy call rather than a real tradeoff.
The JBL PartyBox On-The-Go 2 Plus is the better-sounding option. A well balanced karaoke party speaker with clean bass, clear vocals, on-board vocal removal, an included wireless mic and a removable battery. It keeps a wired aux input, which the JBL Boombox 4 lacks. Watch for: The bass has less kick and physical impact than the JBL Partybox Encore 2 or JBL Partybox Club 120, and the JBL Partybox Club 120 gets noticeably louder.
The JBL Boombox 4 is the longer-running, tougher choice. An extremely loud boombox for its size with fully waterproof, dustproof build, a long battery and a flexible app EQ. It is rated for 28 hours of battery against 15 for the JBL PartyBox On-The-Go 2 Plus. It is rated IP68 against IPX4 for the JBL PartyBox On-The-Go 2 Plus. It supports AAC Bluetooth, which the JBL PartyBox On-The-Go 2 Plus lacks. Watch for: Pretty overpriced for the category.
Buy the JBL PartyBox On-The-Go 2 Plus. It is rated higher for sound quality than the JBL Boombox 4 and costs less, so only choose the other one for a particular feature it does better.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Prices on this page were last checked November 14, 2026 at 6:17 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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Specifications Side By Side
| JBL PartyBox On-The-Go 2 Plus | JBL Boombox 4 | |
|---|---|---|
| Price | $349.95 | $549.95 |
| Ranked | #5 of 113 in Boombox Size Portable Bluetooth Speakers | #20 of 113 in Boombox Size Portable Bluetooth Speakers |
| App | Yes (JBL One app) | Yes |
| Aux Input | Yes | No |
| Battery Life | 15 hours (Manufacturer specified) | 28 hours (Manufacturer specified) |
| Built-in Microphone | No | No |
| EQ | Yes (app EQ, Deep and Punchy bass boost) | Yes (7 band) |
| IP Rating | IPX4 | IP68 |
| Party Mode | Yes (Auracast) | Yes (Auracast) |
| Power Bank | Yes (USB-C, 11V/2A) | Yes (USB-C, up to 30W) |
| Power Input | AC Power cord | AC Power cord |
| Removable Battery | Yes | Yes |
| Stereo | Partially | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | Yes | No |
| Weight | 14.2 lbs (6.45 kg) | 13.2 lbs (5.98 kg) |
| Wireless Microphones | Yes 1 Included | - |
| Microphone Input | No (wireless only) | No |
| Guitar Input | No | - |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC, LC3 | SBC, LC3, AAC |
| Bluetooth Version | 5.4 | 5.4 |
| Amplifier Power | 100W RMS | 210W AC / 200W battery |
| Dimensions | 19.7” x 10.2” x 8.7” (501 x 258 x 221 mm) | 20.1” x 10.2” x 8.3” (510 x 260 x 210 mm) |
| Drivers | 1x 135mm (5.25”) woofer + 2x 20mm (0.75”) dome tweeters | 2x 123mm woofers + 2x 20mm tweeters with passive radiators |
| Frequency Response | 40Hz - 20kHz (-6dB, Manufacturer specified) | - |
| Digital Aux Input | Yes (USB-C) | Yes (USB-C) |
| Lights | Yes | - |
| Strap | Yes (detachable shoulder strap) | No |
| Bass Extension (-10dB) | - | 41Hz |
| Bluetooth Latency | - | AAC 144ms, SBC 48ms |
| Maximum SPL | - | 115dB (measured by Alan Ross Reviews) |
| FM Tuner | - | No |
| MicroSD Playback | - | No |
Where the Ratings Come From
- JBL PartyBox On-The-Go 2 Plus: reviews by GYMCADDY and Peter Tyson Audio & Visual.
- JBL Boombox 4: reviews by JOY‘s 🎧3D🔈Audio-Show, Alan Ross and M1MTechChannel.
This comparison is generated from the ratings, specifications and measurements on each product’s own page, and it updates when that data changes. How we rank explains how each rating is decided.
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