Short answer: the JBL Partybox 330 for better sound quality, the Onn XL Wireless Party Speaker for the lower price. The JBL Partybox 300 ranks higher than the Onn XL Wireless Party Speaker (#10 vs #11 of 46 party speakers) but is discontinued. Its replacement, the JBL Partybox 330, is rated 4.6/5 at $629.95; the Onn XL Wireless Party Speaker is rated 4.1/5 at $249, $380.95 cheaper.
The Onn XL Wireless Party Speaker is the tougher pick. A compelling all-in-one party and karaoke package: dual 8-inch woofers, 240W claimed output, two included wireless microphones, dual mic/guitar inputs, karaoke effects and USB-A phone charging. It is rated IPX4, while the JBL Partybox 300 has no water resistance. It has an adjustable EQ, which the JBL Partybox 300 lacks. The catch: Sound favors punch and a forward/bright top end over refinement.
What the JBL Partybox 300 does well: Exceptional sound quality with crisp, crystal clear highs and midranges, hard punchy bass without muddiness. Watch for: Hard to carry, too tall, drags on the ground.
Buy the Onn XL Wireless Party Speaker if price matters most. For better sound quality, the JBL Partybox 330, the replacement for the discontinued JBL Partybox 300, is rated higher but costs $629.95.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Onn XL Wireless Party Speaker | JBL Partybox 300 | |
|---|---|---|
| Price | $249.00 | $300 Discontinued |
| Ranked | #11 of 46 in Party Size Portable Bluetooth Speakers | #10 of 46 in Party Size Portable Bluetooth Speakers |
| Weight | 44 lbs (19.96 kg) | 35.3 lbs (16 kg) |
| Dimensions | 30.1”H x 15.7”W x 15.5”D (765.0 x 400.0 x 392.9 mm) | 27” x 13” x 12.7” (685.8 x 330.2 x 322.6 mm) |
| Drivers | Dual 8” (203mm) woofers + dual 2” (51mm) tweeters | 2x 6.5” (165mm) woofers + 3x 2.25” (57mm) tweeters |
| Amplifier Power | 240W | 120W |
| Battery Life | 16 hours (Manufacturer specified) | 18 hours (Manufacturer specified) |
| IP Rating | IPX4 | None |
| Microphone Input | Yes (2 inputs, karaoke mode) | Yes (Karaoke mode with echo effect) |
| Wireless Microphones | Yes 2 Included | - |
| Guitar Input | Yes | Yes |
| Power Input | AC Power cord | AC Power cord |
| Power Bank | Yes (USB-A) | Yes (USB-A) |
| Aux Input | Yes | Yes |
| Removable Battery | No | - |
| Omnidirectional | No | No |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) | SBC |
| Lights | Yes | Yes |
| Wheels | Yes | - |
| App | Yes | No |
| EQ | Yes | No |
| Stereo | Yes | Yes (lying down) |
| TWS | Yes | Yes |
| Digital Aux Input | No | No |
| Strap | No | No |
| Bass Extension (-10dB) | - | 40Hz |
| Bluetooth Version | - | 4.2 |
| Frequency Response | - | 45Hz - 20kHz (Manufacturer specified) |
| Party Mode | - | No |
| USB Playback | - | Yes |
Related Speaker Comparisons
More top alternatives to JBL Partybox 300:
- Sony ULT Tower 7 vs JBL Partybox 300
- JBL Partybox 330 vs JBL Partybox 300
- JBL Partybox Stage 320 vs JBL Partybox 300
- JBL Partybox 310 vs JBL Partybox 300
- Sony ULT Tower 5 vs JBL Partybox 300
Prices on this page were last checked October 15, 2026 at 5:41 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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The Two Speakers In Full
Onn XL Wireless Party Speaker: $249.00 Walmart $249.00 eBay
Pros: A compelling all-in-one party and karaoke package: dual 8-inch woofers, 240W claimed output, two included wireless microphones, dual mic/guitar inputs, karaoke effects and USB-A phone charging. It plays loudly enough for backyard use and has punchy bass; owners especially like the wheels, telescoping handle and colorful light effects. At 44 lb it is still a substantial cabinet, but the trolley design makes moving it far easier than carrying it.
Cons: Sound favors punch and a forward/bright top end over refinement. Independent comparisons and owner reports find the bass less deep and the overall balance less satisfying than the JBL PartyBox 320; several consider the far-cheaper Onn Large Party gen 2 the better sound-per-dollar buy. Some owners report distortion or static at high volume, and a few report wireless-mic pairing/dropout problems. Large (30 inches tall, 44 lb) and only IPX4 splash-resistant, not a speaker to leave out in rain.
Full Onn XL Wireless Party Speaker review and specifications →
| Released | Jul 2026 (3 months ago) |
|---|---|
| Amplifier Power | 240W |
| App | Yes |
| Aux Input | Yes |
| Battery Life | 16 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) |
| Digital Aux Input | No |
| Dimensions | 30.1”H x 15.7”W x 15.5”D (765.0 x 400.0 x 392.9 mm) |
| Drivers | Dual 8” (203mm) woofers + dual 2” (51mm) tweeters |
| EQ | Yes |
| Guitar Input | Yes |
| IP Rating | IPX4 |
| Lights | Yes |
| Microphone Input | Yes (2 inputs, karaoke mode) |
| Omnidirectional | No |
| Power Bank | Yes (USB-A) |
| Power Input | AC Power cord |
| Removable Battery | No |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| Weight | 44 lbs (19.96 kg) |
| Wheels | Yes |
| Wireless Microphones | Yes 2 Included |
- Links
- Reviews, Comparisons and Sound Samples
- Jay’s Straight Up Reviews & More: ONN XL Party Speaker Review & Demo 😲 Is This The Next Big Thing In Party/Karaoke Speakers? More from JaysStraightUpReviews →
- Jay’s Straight Up Reviews & More: ONN XL Party Speaker vs JBL Partybox 320. Outdoors, Battery Powered.
- Jay’s Straight Up Reviews & More: ONN XL Party Speaker vs. Two Large Gen. 2 Party Speakers. ONN With The Showdown🔌 Plugged In
- Head-to-Head Comparisons
- Onn XL Wireless Party Speaker vs Zealot PT21
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- Onn XL Wireless Party Speaker vs JBL Partybox 100
- Onn XL Wireless Party Speaker vs Sony SRS-XP700
- Onn XL Wireless Party Speaker vs JBL Partybox 130
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JBL Partybox 300: $300 Discontinued eBay
Newer model: the JBL Partybox 330, ranked higher, rated 4.6/5, released Jun 2026. See every JBL PartyBox generation.
Pros: Exceptional sound quality with crisp, crystal clear highs and midranges, hard punchy bass without muddiness. 2x 6.5” woofers + 3x 2.25” tweeters, bass boost function, 45Hz-20kHz frequency range. 18-hour battery with 10400mAh capacity. Multiple inputs (RCA, USB, 3.5mm aux, mic, guitar). LED light modes (meter/pulse/party). True Wireless Stereo pairing up to 2 units. Measured bass extension of 40Hz (-10dB).
Cons: Hard to carry, too tall, drags on the ground. Max spl and bass extension are only as good as the JBL Partybox 100. No real reason to ever get one, get a JBL Partybox 100 instead. Discontinued.
Full JBL Partybox 300 review and specifications →
| Released | Nov 2018 (7 years ago) |
|---|---|
| Amplifier Power | 120W |
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 40Hz |
| Battery Life | 18 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 4.2 |
| Digital Aux Input | No |
| Dimensions | 27” x 13” x 12.7” (685.8 x 330.2 x 322.6 mm) |
| Drivers | 2x 6.5” (165mm) woofers + 3x 2.25” (57mm) tweeters |
| EQ | No |
| Frequency Response | 45Hz - 20kHz (Manufacturer specified) |
| Guitar Input | Yes |
| IP Rating | None |
| Lights | Yes |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes (USB-A) |
| Power Input | AC Power cord |
| Stereo | Yes (lying down) |
| Strap | No |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 35.3 lbs (16 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- JBL Partybox 300 vs JBL Partybox 110
- JBL Partybox 300 vs JBL Partybox 100
- JBL Partybox 300 vs Zealot PT21
- JBL Partybox 300 vs JBL Partybox 130
- JBL Partybox 300 vs JBL Partybox Club 120
- JBL Partybox 300 vs Sony SRS-XP700
- JBL Partybox 300 vs Sony SRS-XP500
- JBL Partybox 300 vs Sony ULT Tower 5
- See all 45 comparisons