Teufel Rockster Air 2 vs Earfun Uboom X (August 2026)

Q: Which is better, the Teufel Rockster Air 2 or the Earfun Uboom X?

Short answer: these aren’t really direct competitors. The Uboom X ranks #1 out of 72 party-size speakers at $128; the Rockster Air 2 ranks #13 at $499.99, roughly $371.99 more. One is a compact, carry-anywhere Bluetooth speaker; the other is a wheel-free but still substantial party rig built around XLR inputs and long runtime.

Q: Should I buy the Teufel Rockster Air 2 or the Earfun Uboom X?

Buy the Uboom X if you want an exceptionally well-tuned, genuinely portable speaker at a fraction of the price. Buy the Rockster Air 2 if you need real output and pro-style inputs for an actual event, not a speaker that fits in a bag.

Short answer: these aren’t really direct competitors. The Uboom X ranks #1 out of 72 party-size speakers at $128; the Rockster Air 2 ranks #13 at $499.99, roughly $371.99 more. One is a compact, carry-anywhere Bluetooth speaker; the other is a wheel-free but still substantial party rig built around XLR inputs and long runtime.

The Uboom X is built for portability and tuning accuracy, not scale. At 4.1 kg (9 lbs) it’s a fraction of the Rockster Air 2’s 14.15 kg (31.2 lbs), and our own notes rate its tuning as close to reference-neutral - among the most accurate of any modern Bluetooth speaker, with per-volume EQ correction that keeps it sounding right whether it’s quiet or loud. It also has an IP67 rating the Rockster Air 2 doesn’t carry at all.

The Rockster Air 2 is built for scale and real inputs, not portability. Its 80W output, larger drivers, and full XLR line/microphone/guitar inputs are aimed at filling a bigger space or plugging in real instruments, not fitting in a bag. It even out-lasts the Uboom X on battery, 58 hours against 30, but that number matters less than it sounds like it should - the Uboom X’s small size means you’ll actually carry it to places the Rockster Air 2 never will.

Buy the Uboom X if you want an exceptionally well-tuned, genuinely portable speaker at a fraction of the price. Buy the Rockster Air 2 if you need real output and pro-style inputs for an actual event, not a speaker that fits in a bag.

If battery life is a priority, the Teufel Rockster Air 2 is rated for 58 hours versus 30 hours for the Earfun Uboom X.

If water resistance matters to you, the Earfun Uboom X at IP67 (brief submersion) holds up far better than the Teufel Rockster Air 2 at no water resistance.

Buy the Teufel Rockster Air 2 at Amazon ($499.99) →Buy the Earfun Uboom X at Myearfun →

Teufel Rockster Air 2 vs Earfun Uboom X

Specifications Side By Side

	Teufel Rockster Air 2	Earfun Uboom X
Price	$499.99	$128 Discontinued
Ranked	#13 of 50 in Party Size Portable Bluetooth Speakers	#1 of 72 in Boombox Size Portable Bluetooth Speakers
App	No	Yes (Earfun Audio app)
Aux Input	Yes	Yes
Battery Life	58 hours (Manufacturer specified)	30 hours (Manufacturer specified)
Bluetooth Codecs	aptX HD, AAC	AAC, SBC
Bluetooth Version	5.0	5.3
Dimensions	12.7" x 23.2" x 13.5" (323 x 589 x 343 mm)	15.7" x 5.9" x 8.5" (400 x 150 x 215 mm)
EQ	No	Yes (App EQ)
IP Rating	None	IP67
Party Mode	Yes (Party Link Stereo, 2 speakers; XLR chaining up to 10)	Yes (Party Connect mode, up to 50 speakers)
Power Bank	Yes (USB-C)	Yes (USB-C)
Power Input	AC Power cord	USB-C
Stereo	Yes	Yes
TWS	Yes	Yes
USB Playback	No	No
Weight	31.2 lbs / 14.15 kg	9 lbs / 4.1 kg
Output Power	80W	80W
Drivers	2-way: 1x 10" paper woofer, 1x 1" polypropylene tweeter	2x 102mm (4") woofers + 2x 20mm tweeters
Discontinued	No	Yes
Digital Aux Input	No	No
Frequency Response	47Hz - 22kHz (Manufacturer specified)	-
Microphone Input	Yes (XLR)	-
Guitar Input	Yes	-
XLR Input	Yes	-
Aux Latency	-	16ms
Bass Extension (-10dB)	-	~38Hz
Built in Microphone	-	Yes
Bluetooth Latency	-	SBC Video mode 48ms, AAC Video mode 128ms, SBC 112ms, AAC 176ms
Max Volume	-	110dB
FM Tuner	-	No

Buy the Teufel Rockster Air 2 at Amazon ($499.99) →Buy the Earfun Uboom X at Myearfun →

The Two Speakers In Full

Teufel Rockster Air 2: $499.99 Amazon

Pros: More consistent off-axis sound than the JBL Partybox 130, thanks to its single horn-loaded compression driver. Projects sound more evenly to the sides, unlike the JBL’s narrower front-firing dispersion. Cleaner instrument separation at high volume than the JBL Partybox 130, which turns anemic and loses bass at max volume despite its bass boost.

Cons: Bass isn’t as deep as the JBL Partybox 130’s boosted bass, though the JBL’s is boomy rather than truly deep. Bass and treble aren’t perfectly controlled at maximum volume - can sound hollow or too bright unless turned down from default. Not meaningfully louder than its 3-year-old predecessor, and the reviewer found the overall tuning a bit worse.

Full Teufel Rockster Air 2 review and specifications →

App	No
Aux Input	Yes
Battery Life	58 hours (Manufacturer specified)
Bluetooth Codecs	aptX HD, AAC
Bluetooth Version	5.0
Digital Aux Input	No
Dimensions	12.7" x 23.2" x 13.5" (323 x 589 x 343 mm)
Discontinued	No
Drivers	2-way: 1x 10" paper woofer, 1x 1" polypropylene tweeter
EQ	No
Frequency Response	47Hz - 22kHz (Manufacturer specified)
Guitar Input	Yes
IP Rating	None
Microphone Input	Yes (XLR)
Output Power	80W
Party Mode	Yes (Party Link Stereo, 2 speakers; XLR chaining up to 10)
Power Bank	Yes (USB-C)
Power Input	AC Power cord
Stereo	Yes
TWS	Yes
USB Playback	No
Weight	31.2 lbs / 14.15 kg
XLR Input	Yes

Check current price at Amazon ($499.99) →Search eBay for Teufel Rockster Air 2 →

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Earfun Uboom X: $128 Discontinued Myearfun Amazon

Pros: Tuned by Oluv and he knocked it out of the park again. Deeper bass than the Stormbox Blast. Extremely neutral, possibly the best of any modern Bluetooth speaker slightly behind the Vifa Helsinki. This is the only speaker that sounds correct at every single volume level due to Oluv’s individual EQ settings at each volume level. Other speakers will need a different EQ at each volume level. Amazing sounding at low levels as it boosts bass and treble at low levels to account for the equal-loudness contour. Just considering the midrange and treble, this speaker is better sounding than the Earfun Uboom L.

Cons: The out of the box 0.33 firmware and EQ sounds horrible. Some people have mentioned sound interruption issues when using 2 in TWS, I don’t have this issue with my Pixel 7 Pro, try disabling AAC in that case. Discontinued.

Setup: Please update it using the Earfun app (Android or iOS) and select an Oluv EQ. The Earfun app has sound profiles created by Oluv for Studio, Indoor, Indoor+, Outdoor, Outdoor+, BOOM xxX, and Ground 0 which are all fantastic. Oluv has a newer firmware pack that brings it up a few more notches of neutral

Full Earfun Uboom X review and specifications →

App	Yes (Earfun Audio app)
Aux Input	Yes
Aux Latency	16ms
Bass Extension (-10dB)	~38Hz
Battery Life	30 hours (Manufacturer specified)
Bluetooth Codecs	AAC, SBC
Bluetooth Latency	SBC Video mode 48ms, AAC Video mode 128ms, SBC 112ms, AAC 176ms
Bluetooth Version	5.3
Built in Microphone	Yes
Digital Aux Input	No
Dimensions	15.7" x 5.9" x 8.5" (400 x 150 x 215 mm)
Discontinued	Yes
Drivers	2x 102mm (4") woofers + 2x 20mm tweeters
EQ	Yes (App EQ)
FM Tuner	No
IP Rating	IP67
Max Volume	110dB
Output Power	80W
Party Mode	Yes (Party Connect mode, up to 50 speakers)
Power Bank	Yes (USB-C)
Power Input	USB-C
Stereo	Yes
TWS	Yes
USB Playback	No
Weight	9 lbs / 4.1 kg

Check current price at Myearfun →Check current price at Amazon ($128) →Search eBay for Earfun Uboom X →

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Product prices and availability were last checked August 12, 2026 at 5:33 PM UTC 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.