These are not really the same size class, and that is the honest framing here. The Onn XL Wireless Party Speaker ranks #11 of 53 party speakers by sound quality at $249; the JBL Boombox 4 ranks #20 of 113 boombox speakers by sound quality at $549.95.
A karaoke tower against a carry-anywhere boombox. The Onn XL is a 44.1 lbs (20 kg) party speaker on wheels with dual 8 inch woofers, two included wireless microphones and dual mic and guitar inputs. The Boombox 4 is a 13.2 lbs (6 kg) boombox with a handle. Each is rated within its own class.
The Boombox 4 is the tougher and louder one for its size. It is IP68 against the Onn’s IPX4, measured about 115dB, reaches about 41Hz, and claims 28 hours from a removable battery. It has a 7-band app EQ, Auracast and a USB-C power bank, but no aux input, and out of the box it sounds worse than the Boombox 3 until you EQ it. Oluv’s EQ is linked on its page.
The Onn XL is the party package. It plays loud enough for a backyard with punchy bass, adds lights and a telescoping handle, and claims 16 hours. Its sound favors punch and a bright top end over refinement, some owners report distortion at high volume, and comparisons find its bass less deep than the JBL PartyBox 320.
Buy the Onn XL Wireless Party Speaker ($249) for a party speaker; the JBL Boombox 4 ($549.95) suits a boombox speaker instead.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Prices on this page were last checked November 11, 2026 at 3:26 AM 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
| Onn XL Wireless Party Speaker | JBL Boombox 4 | |
|---|---|---|
| Price | $249.00 | $549.95 |
| Ranked | #11 of 53 in Party Size Portable Bluetooth Speakers | #20 of 113 in Boombox Size Portable Bluetooth Speakers |
| Weight | 44 lbs (19.96 kg) | 13.2 lbs (5.98 kg) |
| Dimensions | 30.1”H x 15.7”W x 15.5”D (765.0 x 400.0 x 392.9 mm) | 20.1” x 10.2” x 8.3” (510 x 260 x 210 mm) |
| Drivers | Dual 8” (203mm) woofers + dual 2” (51mm) tweeters | 2x 123mm woofers + 2x 20mm tweeters with passive radiators |
| Amplifier Power | 240W | 210W AC / 200W battery |
| Battery Life | 16 hours (Manufacturer specified) | 28 hours (Manufacturer specified) |
| IP Rating | IPX4 | IP68 |
| Microphone Input | Yes (2 inputs, karaoke mode) | No |
| Wireless Microphones | Yes 2 Included | - |
| Guitar Input | Yes | - |
| Power Input | AC Power cord | AC Power cord |
| Power Bank | Yes (USB-A) | Yes (USB-C, up to 30W) |
| Aux Input | Yes | No |
| Removable Battery | No | Yes |
| Omnidirectional | No | No |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) | SBC, LC3, AAC |
| Lights | Yes | - |
| Wheels | Yes | - |
| App | Yes | Yes |
| EQ | Yes | Yes (7 band) |
| Stereo | Yes | Yes |
| TWS | Yes | Yes |
| Digital Aux Input | No | Yes (USB-C) |
| Strap | No | No |
| Bass Extension (-10dB) | - | 41Hz |
| Bluetooth Latency | - | AAC 144ms, SBC 48ms |
| Maximum SPL | - | 115dB (measured by Alan Ross Reviews) |
| Party Mode | - | Yes (Auracast) |
| Bluetooth Version | - | 5.4 |
| Built-in Microphone | - | No |
| USB Playback | - | No |
| FM Tuner | - | No |
| MicroSD Playback | - | No |
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