Short answer: the W-King X10, though neither ranks well in its class. It ranks #94 of 113 boombox speakers by sound quality, rated 2.3/5, at $80; the Monster Rockin’ Roller 270 ranks #104, rated 2.1/5, and costs $208.99, which makes this an easy call rather than a real tradeoff. Both are rated below 3.0/5 among the 113 boombox speakers, so if sound quality matters, consider the Tribit Stormbox Blast instead, ranked #2 at $199.99.
The W-King X10 is the lighter, tougher option. A cheap, waterproof stereo boombox with a very long battery, loud output and a power bank for charging your phone. At 6.5 lbs (2.95 kg) it weighs much less than the Monster Rockin’ Roller 270 at 28.7 lbs (13 kg). It is rated IPX6 against IPX4 for the Monster Rockin’ Roller 270. It plays in stereo from a single unit, unlike the Monster Rockin’ Roller 270. The catch: Heavily rolled off treble, less bass than the top ranked.
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 42 for the W-King X10. Watch for: Bass not as deep as competitors, less neutral than ION speakers.
Buy the W-King X10. It is rated higher for sound quality than the Monster Rockin’ Roller 270 and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
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
| W-King X10 | Monster Rockin’ Roller 270 | |
|---|---|---|
| Price | $80 | $208.99 |
| Ranked | #94 of 113 in Boombox Size Portable Bluetooth Speakers | #104 of 113 in Boombox Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 52Hz | 53Hz |
| Battery Life | 42 hours (Manufacturer specified) | 100 hours (Manufacturer specified) |
| IP Rating | IPX6 | IPX4 |
| Maximum SPL | 106dB (measured by Alan Ross Reviews) | 96dB (Manufacturer specified) |
| MicroSD Playback | Yes | - |
| Power Bank | Yes (USB-A) | Yes (USB-A, 5V/2.1A) |
| Stereo | Yes | No |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 6.5 lbs (2.95 kg) | 28.7 lbs (13 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| App | No | Yes (Monster Zone Control app) |
| EQ | Yes (2 modes - Indoor/Outdoor) | Yes |
| Party Mode | No | No |
| USB Playback | Yes | No |
| Built-in Microphone | Yes | No |
| Power Input | USB-C | USB-C |
| FM Tuner | No | Yes |
| Bluetooth Version | 5.0 | 5.0 |
| Amplifier Power | 70W RMS (120W peak) | 200W |
| Dimensions | 12.4” x 5.5” x 5.3” (315 x 140 x 135 mm) | 15” x 18.6” x 10.9” (381 x 472 x 276 mm) |
| Drivers | 2x 3.66” (93mm) subwoofers + 2x 1.2” (31mm) neodymium tweeters + 3x passive radiators | 2x 3” (76mm) woofers + 2x tweeters (size undisclosed) |
| Digital Aux Input | No | No |
| Strap | Yes (detachable shoulder strap) | No |
| Wheels | - | Yes |
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