In an increasingly competitive wireless earbuds market, JBL continues to establish its presence with the 2024 release of the Tune Flex 2. As a follow-up to the original Tune Flex, these earbuds aim to deliver premium features at a mid-range price point. After spending significant time testing these earbuds across various environments and use cases, here’s my in-depth assessment of whether they live up to JBL’s promises.
Pros/Cons Summary
Pros:
- Convertible design with both open-ear and sealed options
- Effective active noise cancellation for the price range
- Rich, bass-forward sound signature typical of JBL
- Solid battery life (up to 8 hours per charge, 32 hours total with case)
- Reliable Bluetooth multipoint connection
- Voice assistant integration works seamlessly
- Good call quality with dual beamforming mics
- IPX4 water resistance rating
Cons:
- Touch controls can be finicky and overly sensitive
- Case is larger than some competitors
- Sound leakage in open-ear configuration
- Limited EQ customization in app
- ANC not as powerful as higher-end models
- Some users may find the bass emphasis overwhelming




Technical Specifications
- Driver size: 10mm dynamic drivers
- Frequency response range: 20Hz – 20kHz
- Impedance: 16 ohms
- Bluetooth version: 5.3
- Bluetooth codecs: SBC, AAC
- Battery life:
- 8 hours (earbuds only with ANC off)
- 6 hours (earbuds only with ANC on)
- 32 hours total with charging case (ANC off)
- 24 hours total with charging case (ANC on)
- Charging time: 2 hours for full charge, 10 minutes for 2 hours playback
- Water resistance rating: IPX4 (splash and sweat resistant)
- Weight: 5.2g per earbud, 43g charging case
- Special features:
- Active Noise Cancellation (ANC)
- Ambient Aware (transparency mode)
- TalkThru (quick conversation mode)
- Convertible design (open-ear and sealed configurations)
- Multipoint Bluetooth connection (two devices simultaneously)
- Voice assistant compatibility (Google Assistant, Siri)
Sound Quality Assessment
The JBL Tune Flex 2 carries forward the brand’s reputation for delivering punchy, energetic sound. The 10mm dynamic drivers produce audio that leans toward a bass-forward signature without completely overwhelming the mids and highs. This tuning makes these earbuds particularly well-suited for popular music genres like hip-hop, EDM, and modern pop.
In the low-end, bass is pronounced and extends fairly deep, providing a satisfying thump for bass-heavy tracks. There’s a noticeable boost around the 80-100Hz range that gives drums and bass guitars extra presence. While this emphasis might not appeal to purists seeking a completely neutral sound profile, it delivers the exciting, engaging experience many consumers prefer.
The midrange is reasonably clear, though slightly recessed compared to the boosted bass. Vocals remain intelligible, if not always front and center in the mix. Male vocals benefit from the upper bass warmth, while female vocals can occasionally sound slightly thin when competing with bass-heavy instrumentation.
Treble performance is respectable with decent clarity in the upper registers. Cymbals and high hats have appropriate shimmer without becoming harsh or sibilant at normal listening volumes. However, at maximum volume, some tracks can exhibit mild harshness in the highest frequencies.
The JBL Headphones app offers preset EQ options that can somewhat tailor the sound to different preferences, though the customization options aren’t as extensive as some competitors. The “Vocal” EQ setting helps bring the midrange forward for podcast or voice-centric content, while the “Bass” setting further emphasizes the low end for those who want maximum impact.
Soundstage is average for in-ear monitors – not particularly expansive but providing adequate spatial separation between instruments. The imaging is competent, allowing you to place instruments in their respective positions, though not with the pinpoint accuracy of higher-end models.
One notable aspect is the difference in sound between the open-ear and sealed configurations. The open-ear setup sacrifices some bass response and isolation but provides a more natural, airy quality. The sealed configuration with silicone tips delivers fuller bass and better isolation but a more “in your head” presentation.
Comfort and Fit
The standout feature of the Tune Flex 2 is its convertible design, offering both open-ear and sealed-fit options. This flexibility is rare in this price range and provides genuine versatility for different scenarios.
In the open-ear configuration (without silicone tips), the earbuds rest gently at the entrance of the ear canal without creating a seal. This design allows for more awareness of surroundings and reduces ear fatigue during extended listening sessions. However, this configuration is less secure for vigorous physical activities.
The sealed configuration uses silicone tips (three sizes included) to create an acoustic seal in the ear canal. This significantly improves passive noise isolation and bass response while providing a more secure fit for exercise. The tips are comfortable and don’t create excessive pressure, though some users may experience the typical “plugged” sensation common to in-ear designs.
At 5.2g per earbud, the Tune Flex 2 is lightweight enough for extended wear without causing discomfort. The earbuds’ shape contours well to most ear anatomies, though individuals with very small ears might find them slightly bulky.
The touch-sensitive outer surfaces allow for control without physical buttons that might cause discomfort when pressed. However, this touch sensitivity can sometimes lead to accidental activations when adjusting the earbuds.
For active users, the IPX4 water resistance rating provides adequate protection against sweat and light rain, making these suitable companions for workouts and runs. The earbuds stay in place reasonably well during moderate physical activity, particularly in the sealed configuration.




Battery Life (Wireless)
Battery performance is a strong point for the Tune Flex 2. With ANC disabled, the earbuds deliver approximately 8 hours of continuous playback on a single charge, dropping to about 6 hours with ANC enabled. This places them above average in their price category.
The charging case provides an additional three full charges, bringing the total listening time to around 32 hours (ANC off) or 24 hours (ANC on) before requiring a wall charger. The case charges via USB-C and takes approximately 2 hours for a full charge.
A quick-charge feature provides about 2 hours of playback from just 10 minutes of charging, which is particularly useful for last-minute top-ups before commuting or workouts.
Battery life is consistent across various volume levels, though running at maximum volume will reduce these estimates by roughly 15-20%. The JBL Headphones app provides accurate battery level indicators for both earbuds and the case.
The case lacks wireless charging capabilities, which is disappointing but not unexpected at this price point. A small LED indicator on the case provides basic charge status information.
Additional Features
The Tune Flex 2 includes several features typically found in more expensive models:
Active Noise Cancellation (ANC) is effective for reducing constant, low-frequency noise like air conditioners, airplane engines, or office hum. While not class-leading, it significantly reduces environmental noise, especially when combined with a good seal using the silicone tips. The ANC system handles steady noises better than sudden, sharp sounds.
Ambient Aware mode uses the microphones to pass through environmental sounds, allowing users to remain aware of their surroundings without removing the earbuds. This implementation sounds relatively natural compared to competitors, without excessive wind noise or digital artifacts.
TalkThru mode temporarily reduces music volume and enhances voice frequencies, making conversations possible without removing the earbuds. This feature activates quickly and works as advertised.
Bluetooth Multipoint allows simultaneous connection to two devices, seamlessly switching between them as needed. This feature works reliably, making it easy to stay connected to both a phone and laptop during work.
Voice Assistant Integration provides easy access to Google Assistant or Siri with a touch-and-hold gesture on the earbud. The microphones do a good job of capturing voice commands even in moderately noisy environments.
Call Quality is above average for the price range. The dual beamforming microphones capture voice clearly while suppressing background noise. Callers reported clear, natural-sounding voice reproduction even in moderately noisy settings like coffee shops or streets with light traffic.
The JBL Headphones App offers firmware updates, EQ presets, control customization, and battery monitoring. While not as feature-rich as some competitors’ apps, it provides a clean, intuitive interface for accessing the earbuds’ core functions.
Price/Value Analysis
At a retail price point of approximately $129.95, the JBL Tune Flex 2 positions itself in the competitive mid-range segment of the wireless earbuds market. Considering the feature set, sound quality, and versatile design, they represent solid value for the price.
The convertible design essentially provides two wearing styles in one product, adding significant value for users who have different preferences in different situations. Few competitors in this price range offer this level of versatility.
The inclusion of effective ANC, multipoint connectivity, and decent app support further strengthens the value proposition. While premium features like wireless charging, aptX codec support, and more extensive EQ customization are absent, these omissions are reasonable considering the price point.
Durability appears good with quality materials and IPX4 water resistance, suggesting these earbuds should withstand daily use for several years with proper care. JBL’s standard one-year warranty provides additional peace of mind.
Sales and promotions frequently bring these earbuds closer to the $100 mark, at which point they become an exceptional value and highly competitive against options from Sony, Samsung, and other major brands in the same category.
Comparison to Alternatives
When compared to key competitors in the $100-150 price range:
Samsung Galaxy Buds FE ($99):
- The Tune Flex 2 offers better battery life and the unique convertible design
- The Galaxy Buds offer better integration with Samsung devices and a smaller case
- Sound quality is comparable, though the JBLs have more pronounced bass
You can read Samsung Galaxy Buds FE Review: Affordable Excellence in the Galaxy Ecosystem for more information.
Anker Soundcore Liberty Air 2 Pro ($130):
- The Soundcore offers slightly more effective ANC and wireless charging
- The Tune Flex 2 provides better call quality and the convertible design option
- The Soundcore app offers more extensive EQ customization
Sony WF-C700N ($119):
- Sony offers more balanced sound and slightly better ANC
- The JBLs have better battery life and multipoint connection
- The convertible design of the Tune Flex 2 provides more versatility
You can read Sony WF-C700N Wireless Earbuds: A Comprehensive Review for more information.
JBL Tune Flex :
- The Tune Flex 2 improves battery life by approximately 25%
- Bluetooth connectivity is more stable with the newer Bluetooth 5.3
- Call quality is noticeably improved with the updated microphone array
- Sound signature remains similar with minor refinements to the bass response
Who Should Buy This
The JBL Tune Flex 2 is ideal for:
- Versatility seekers who want both open-ear comfort and sealed isolation options without buying two separate products
- Bass enthusiasts who appreciate JBL’s energetic, punchy sound signature
- Commuters and office workers seeking decent ANC without spending premium prices
- Multi-device users who benefit from the reliable Bluetooth multipoint functionality
- Active users needing sweat resistance and secure fit for workouts
- Budget-conscious buyers looking for a feature-rich option without breaking the bank
These earbuds are less suitable for:
- Audiophiles seeking perfectly balanced, neutral sound reproduction
- Users requiring the absolute best noise cancellation available
- Those with very small ear canals who might struggle with the fit
- Users who prioritize the smallest possible charging case




Takeaways
The JBL Tune Flex 2 successfully balances features, performance, and price to deliver a compelling package for the average consumer. The standout convertible design provides genuine versatility rarely found at this price point, effectively offering two earbud styles in one product.
Sound quality follows JBL’s trademark engaging, bass-forward signature that will please most mainstream listeners, if not audio purists. The effective (if not class-leading) ANC, solid battery life, and reliable connection quality make these suitable for daily use across various scenarios.
Some minor drawbacks like the finicky touch controls and limited EQ customization prevent these from being perfect, but they’re easily overshadowed by the overall performance and value proposition.
For users seeking versatile, feature-rich wireless earbuds without venturing into premium price territory, the JBL Tune Flex 2 deserves serious consideration. They represent JBL’s continued commitment to delivering accessible audio products that don’t compromise on the features that matter most to everyday users.