Short answer: the JBL Partybox Encore Essential 2. It ranks #6 of 113 boombox speakers by sound quality, rated 4.3/5, at $249.95. The Monster Rockin’ Roller 270 ranks #104, rated 2.1/5, at $208.99, $40.96 cheaper, not enough of a saving to outweigh the sound-quality gap.
The JBL Partybox Encore Essential 2 is the better-sounding, deeper-bass option. A compact party speaker with balanced sound, punchy bass, mic and guitar inputs, and enough volume for a backyard party. Its bass reaches about 42Hz before falling 10dB, against 53Hz for the Monster Rockin’ Roller 270. At 13.7 lbs (6.2 kg) it weighs much less than the Monster Rockin’ Roller 270 at 28.7 lbs (13 kg). It links with other speakers (Auracast), which the Monster Rockin’ Roller 270 cannot. Watch for: It is front-facing, so the sound changes noticeably to the sides and behind it, and bass compression reduces kick-drum impact at maximum volume.
The Monster Rockin’ Roller 270 is the longer-running option. A wheeled party speaker with an enormous battery, sound spread wide around it and a wireless phone charging pad. It is rated for 100 hours of battery against 15 for the JBL Partybox Encore Essential 2. The catch: Bass not as deep as competitors, less neutral than ION speakers.
Buy the JBL Partybox Encore Essential 2. It is rated higher for sound quality, and the $40.96 saving on the Monster Rockin’ Roller 270 is not enough to make up the difference.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
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 Encore Essential 2 | Monster Rockin’ Roller 270 | |
|---|---|---|
| Price | $249.95 | $208.99 |
| Ranked | #6 of 113 in Boombox Size Portable Bluetooth Speakers | #104 of 113 in Boombox Size Portable Bluetooth Speakers |
| App | Yes (JBL PartyBox app) | Yes (Monster Zone Control app) |
| Aux Input | Yes | Yes |
| Battery Life | 15 hours (Manufacturer specified) | 100 hours (Manufacturer specified) |
| Built-in Microphone | No | No |
| EQ | Yes (7 band App EQ) | Yes |
| Guitar Input | Yes | - |
| IP Rating | IPX4 | IPX4 |
| Microphone Input | Yes (Karaoke mode with echo effect) | - |
| Party Mode | Yes (Auracast) | No |
| Power Bank | Yes (USB-C) | Yes (USB-A, 5V/2.1A) |
| Power Input | AC Power cord | USB-C |
| Stereo | Yes | No |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | Yes | No |
| Weight | 13.7 lbs (6.2 kg) | 28.7 lbs (13 kg) |
| Wireless Microphones | No | - |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Bluetooth Version | 5.4 | 5.0 |
| Amplifier Power | 100W RMS | 200W |
| Dimensions | 12.6” x 13.5” x 10.3” (319.5 x 342 x 260.4 mm) | 15” x 18.6” x 10.9” (381 x 472 x 276 mm) |
| Drivers | 1x 135mm (5.25”) woofer + 2x 20mm (0.75”) dome tweeters | 2x 3” (76mm) woofers + 2x tweeters (size undisclosed) |
| Maximum SPL | 110dB (measured by Alan Ross Reviews) | 96dB (Manufacturer specified) |
| Digital Aux Input | No | No |
| Lights | Yes | - |
| Strap | No | No |
| Bass Extension (-10dB) | 42Hz | 53Hz |
| FM Tuner | - | Yes |
| Wheels | - | Yes |
Where the Ratings Come From
- JBL Partybox Encore Essential 2: reviews by Alan Ross, Jagist and KULAS TECH SHOW.
- Monster Rockin’ Roller 270: reviews by Charles BridgTec and Wanna Buy It.
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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