Partybox 300 rates much higher for sound quality, but costs over twice as much as the Onn Large Party gen 2 and is a genuinely awkward shape to carry. They rank 19 of 51 and 8 of 51.
Partybox 300 delivers crisp highs and punchy bass with a bass-boost function, but it’s hard to carry, too tall, and our notes say there’s no real reason to buy one over the cheaper Partybox 100; it’s since been discontinued.
Onn Large Party gen 2 costs much less and adds karaoke mic/guitar inputs and wheels, though Consumer Reports found its bass boomy and treble smeared with no app or EQ.
Buy the JBL Partybox 300 only if you find one and sound quality is the priority despite its awkward shape. Buy the Onn Large Party gen 2 for the lower price, wheels and karaoke inputs.
Battery life favors the JBL Partybox 300: rated for 18 hours against 12 hours for the Onn Large Party gen 2.
There is a real gap in water resistance: the Onn Large Party gen 2 at IPX4 (splashing) against the JBL Partybox 300, which has no water resistance.
Specifications Side By Side
| Onn Large Party gen 2 | JBL Partybox 300 | |
|---|---|---|
| Price | $129 | $300 Discontinued |
| Ranked | #19 of 51 in Party Size Portable Bluetooth Speakers | #8 of 51 in Party Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Battery Life | 12 hours (Manufacturer specified) | 18 hours (Manufacturer specified) |
| FM Tuner | Yes | - |
| Guitar Input | Yes | Yes |
| IP Rating | IPX4 | None |
| Microphone Input | Yes (Karaoke mode with echo effect) | Yes (Karaoke mode with echo effect) |
| Party Mode | Yes (Party Sync Mode) | No |
| Power Bank | Yes (USB-A, 5V/2.1A) | Yes (USB-A) |
| Power Input | AC Power cord | AC Power cord |
| Stereo | Partially | Yes (lying down) |
| Omnidirectional | No | No |
| Weight | 20.9 lbs / 9.5 kg | 35.3 lbs / 16 kg |
| Bluetooth Codecs | SBC | SBC |
| App | No | No |
| EQ | No | No |
| TWS | No | Yes |
| USB Playback | No | Yes |
| Drivers | Dual 8" (203mm) woofers + dual tweeters | 2x 6.5" (165mm) woofers + 3x 2.25" (57mm) tweeters |
| Digital Aux Input | No | No |
| Bass Extension (-10dB) | - | 40Hz |
| Bluetooth Version | - | 4.2 |
| Dimensions | - | 27" x 13" x 12.7" (685.8 x 330.2 x 322.6 mm) |
| Frequency Response | - | 45Hz - 20kHz (Manufacturer specified) |
| Output Power | - | 120W |
| Discontinued | - | Yes |
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Prices on this page were last checked September 9, 2026 at 6:54 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 Large Party gen 2: $129 Walmart eBay
Pros: A remarkably full-featured, manageable 9.5kg party speaker: wheels and handle, FM radio, aux, USB-A charging, mic and guitar inputs with karaoke echo, and Party Sync. Independent testing confirms bass with real impact and enough output for a large room; it is a clear improvement over the Gen 1 for low-end weight.
Cons: The low price shows in the refinement. Consumer Reports found boomy bass, hazy/grainy mids, a prominent smeared treble and a narrow, two-dimensional soundfield; it also notes distortion or other audio issues. There is no app or EQ to tame the tuning, and IPX4 only covers splashes rather than rain or immersion.
Full Onn Large Party gen 2 review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Digital Aux Input | No |
| Drivers | Dual 8" (203mm) woofers + dual tweeters |
| EQ | No |
| FM Tuner | Yes |
| Guitar Input | Yes |
| IP Rating | IPX4 |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Party Mode | Yes (Party Sync Mode) |
| Power Bank | Yes (USB-A, 5V/2.1A) |
| Power Input | AC Power cord |
| Stereo | Partially |
| TWS | No |
| USB Playback | No |
| Weight | 20.9 lbs / 9.5 kg |
- Reviews, Comparisons and Sound Samples
- Jay’s Straight Up Reviews & More: ONN Large Party Speaker 2 🎶 (Gen 2.0) First Look and Light Demo More from JaysStraightUpReviews →
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- Williston Audio Labs: This Walmart Bluetooth Speaker is INCREDIBLE More from Williston Audio Labs →
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JBL Partybox 300: $300 Discontinued eBay
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.
Cons: Hard to carry, too tall, drags on the ground. Max spl and bass extension are only as good as the Partybox 100. No real reason to ever get one, get a Partybox 100 instead. Discontinued.
Full JBL Partybox 300 review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | 40Hz |
| Battery Life | 18 hours (Manufacturer specified) |
| 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) |
| Discontinued | Yes |
| 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 |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Output Power | 120W |
| Party Mode | No |
| Power Bank | Yes (USB-A) |
| Power Input | AC Power cord |
| Stereo | Yes (lying down) |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 35.3 lbs / 16 kg |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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