The original OneOdio Fusion A70 established itself as an appealing budget headphone by combining an exceptionally long battery life with a useful dual-jack design. Its weaknesses were equally clear, however. The plastic construction felt basic, while its heavily bass-focused sound could sometimes overwhelm vocals and other details.
The OneOdio Fusion A70 GEN 2 takes that established formula and addresses many of those shortcomings. The result is a more refined wireless headphone that retains the practical features of the original while introducing LDAC, Bluetooth 6.0, USB-C charging, multipoint connectivity and app-based EQ customization.
It is still positioned as an affordable pair of headphones rather than a premium audiophile product, but the improvements make the Fusion A70 GEN 2 considerably more versatile.
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OneOdio Fusion A70 GEN 2 Specifications
- Model: OneOdio FUSION A70 Gen 2
- Drivers: 40mm dynamic
- Bluetooth: Bluetooth 6.0
- Codecs: LDAC, AAC, SBC
- Frequency response: 20Hz–40kHz
- Impedance: 32 Ohms
- Sensitivity: 112dB ± 3dB
- Battery: 650mAh
- Battery life: Up to 72 hours
- Wired connections: 3.5mm and 6.35mm
- Cable: 3m coiled cable
- Charging: USB-C
Design and Build Quality
The Fusion A70 GEN 2 does not completely abandon the original's lightweight plastic construction, but OneOdio has made noticeable improvements to its finish and overall presentation.
The headband features plush padding covered in soft faux leather, while the memory foam ear cushions are thicker and more breathable. The cushions create a comfortable seal around the ears without applying excessive clamping pressure, making the headphones suitable for extended listening sessions.
The lightweight construction is also useful for people who intend to wear the headphones throughout the day. Although the A70 GEN 2 does not have the premium materials associated with more expensive headphones, its build feels appropriate for its price category.
The earcups can swivel through 90 degrees, which is particularly useful for DJs and creators who need to monitor audio through one ear. The headphones also fold inward, making them easier to transport in the included travel pouch.
Physical controls are located on the right earcup and provide a satisfying click when pressed. Another welcome upgrade is the move from micro-USB to USB-C charging, which makes the A70 GEN 2 much more convenient to use alongside modern phones, tablets and other accessories.
Dual-Jack Connectivity Makes a Return
One of the most useful aspects of the Fusion series remains its unusual dual-input configuration.
The A70 GEN 2 includes a 3.5mm audio jack on the right earcup and a 6.35mm jack on the left. This allows the headphones to connect directly to a wide range of equipment, including smartphones, PCs, audio interfaces, guitar amplifiers and DJ mixers.
For users who regularly work with audio equipment, having a full-size 6.35mm connection built into the headphones is particularly convenient. It removes the need to keep track of additional adapters.
The included 3m coiled cable also makes the A70 GEN 2 suitable for desk-based recording and monitoring.
OneOdio has retained its SharePort feature as well. A second pair of wired headphones can be connected to the A70 GEN 2, allowing two people to listen to the same audio source.
This combination of wireless and wired connectivity gives the Fusion A70 GEN 2 more flexibility than many headphones in the same general price range.
Bluetooth 6.0 and Wireless Connectivity
The biggest connectivity upgrade is the move to Bluetooth 6.0.
Pairing is quick, and the connection remained stable during everyday use. The A70 GEN 2 also supports multipoint connectivity, allowing two devices to remain connected simultaneously.
This is particularly useful for people who move between a computer and smartphone throughout the day. A user can listen to music or participate in a video call on a laptop while keeping a phone connected for incoming calls.
The headphones also support LDAC, alongside AAC and SBC. LDAC provides access to higher-bitrate Bluetooth audio when paired with a compatible device, making it one of the most significant improvements over the original Fusion A70.
Bluetooth performance is not the only consideration when assessing wireless headphones, but the combination of Bluetooth 6.0, multipoint support and LDAC makes the A70 GEN 2 considerably more capable as an everyday wireless headset.
Sound Quality
Sound quality is where the A70 GEN 2 makes one of its most noticeable improvements over the original.
The first-generation model had a strongly bass-oriented sound signature. While that made electronic music, hip-hop and other bass-heavy genres enjoyable, the emphasis could sometimes overwhelm vocals and midrange frequencies.
The A70 GEN 2 takes a more balanced approach.
Its upgraded 40mm dynamic drivers deliver punchy, deep bass without allowing it to dominate the rest of the frequency range. Vocals have greater clarity, while instruments are easier to distinguish from one another.
The wider presentation also helps the headphones feel more versatile across different genres. Electronic music still benefits from the strong low-end response, but acoustic tracks, podcasts, rock and vocal-focused recordings are better served by the improved midrange.
The headphones are also Hi-Res Audio certified, and LDAC provides an additional step up in wireless audio quality when the source device and content support the codec.
High-bitrate tracks can reveal additional detail in acoustic instruments and percussion, although the overall experience remains dependent on the quality of the source and the connected device.
OneOdio App and Custom EQ
Another major upgrade is compatibility with the OneOdio companion app.
The original A70 offered limited scope for changing its default sound signature. The A70 GEN 2 gives users considerably more control through its graphic EQ.
Listeners can choose from built-in presets or create their own EQ curves. This is particularly useful because headphone preferences vary considerably.
Someone who prefers a strong bass response can increase the low frequencies, while users who prefer vocals and acoustic instruments can create a more balanced profile.
The ability to save or switch between different sound profiles also makes the A70 GEN 2 more adaptable. A listener can use one profile for gaming, another for music and another for podcasts without relying entirely on the manufacturer's default tuning.
72-Hour Battery Life
Battery life has always been one of the strongest features of the Fusion A70 range, and OneOdio has retained it for the second generation.
The A70 GEN 2 offers up to 72 hours of wireless playback on a full charge.
That figure makes the headphones particularly well suited to travel and regular daily use. During everyday listening at moderate volume, the battery can last for extended periods without requiring frequent charging.
The large 650mAh battery is therefore one of the headset's biggest practical advantages.
USB-C charging also makes topping up considerably easier than on the original model. A short 15-minute charge can provide several hours of additional playback, making it possible to recover useful battery life during a brief break.
There is also an important fallback option: wired listening.
If the battery does run out, either audio cable can be used to continue listening in passive wired mode. This effectively eliminates the concern of being left without headphones simply because the battery has reached zero.
Gaming and Everyday Use
Although the Fusion A70 GEN 2 is not marketed solely as a gaming headset, its feature set makes it suitable for casual gaming.
The 40mm drivers provide enough bass for game sound effects while maintaining clear dialogue and other midrange details. The comfortable ear cushions also make it possible to wear the headphones during longer gaming sessions.
The wired connections provide another advantage for gamers using devices where Bluetooth is inconvenient or unavailable.
For general use, the A70 GEN 2 is arguably even more convincing. The combination of multipoint Bluetooth, long battery life, comfortable padding and the ability to switch to wired audio makes it suitable for work, commuting, entertainment and travel.
Its foldable design also means it can be packed away without taking up much space.
OneOdio Fusion A70 vs A70 GEN 2
The A70 GEN 2 is therefore more of an extensive refinement than a complete redesign. OneOdio has retained the features that made the original useful while concentrating its upgrades on connectivity, sound quality, comfort and software.
Verdict
The OneOdio Fusion A70 GEN 2 is a strong upgrade to an already capable budget headphone.
Its biggest strength is that OneOdio has not sacrificed the original model's most useful features in pursuit of newer technology. The 72-hour battery, foldable design, dual 3.5mm and 6.35mm inputs and SharePort functionality all remain intact.
At the same time, the new generation addresses several of the original's limitations. LDAC and Bluetooth 6.0 significantly improve its wireless credentials, while the OneOdio app provides much-needed control over the sound profile. The more balanced tuning is another welcome change, delivering stronger clarity without abandoning the punchy bass that helped define the original.
The plastic construction remains a reminder that this is an affordable headphone rather than a luxury model, and listeners seeking the absolute highest level of audio refinement will still have reasons to look higher up the market. However, those compromises are easier to accept given the feature set.
For commuters, creators, DJs, gamers and everyday listeners looking for a versatile wireless headphone with exceptional battery life, the OneOdio Fusion A70 GEN 2 offers an impressive combination of features and flexibility.
It takes what worked about the original Fusion A70 and makes it more practical, more connected and better balanced. More information is available here.
