According to OPPO Laboratory, OPPO Enco X2's noise cancellation chip is 50% more powerful than the Enco X's. On the inside, Oppo has wisely let Dynaudio have free rein – and let’s not imagine this isn’t a bit of a coup for Oppo. Dynaudio has a pretty much impeccable reputation in Hi-Fi circles, and it seems a bit weird that the Danish specialist hasn’t already delivered a pair of headphones or two under its own steam. There’s plenty of dynamism on display too, both of the glaring ‘loud/quiet/loud’ type and the more subtle harmonic dynamics – as a result, Thom Yorke sounds poised and immediate. There’s nothing in-your-face about the way the Oppo present music, but at the same time they’re no shrinking violets. It’s also important to test how well a pair of buds perform for non-music content. The Oppo Enco Free aces vocal output for content that is more speech-oriented. TV shows, movies and videos all benefit from this tuning. We were also delighted by the call quality on these. Parties on both ends had no complaints with the voice quality. There was some level of noise cancellation and vocal boosting going on, which made voices sound much clearer. It can get a little flat at the higher output levels, but that is a reasonable trade-off for better calls.

Talking about range, you better keep your phone with yourself or in your room, cause if you like to run around your house/workplace while keeping your phone at your charging/desk, you will find yourself annoyed with stuttering music. The earbuds support IP54 dust and water resistance, but the charging case is not. Avoid using the earbuds and charging case during strenuous exercise to prevent damage from perspiration. A 10-minute charging for 8 hours play time, which is from the combination of earbuds and the case. Fast charging your OPPO Enco Air needs only a standard adapter or Type-C charging cable. Charging performance may vary. They do omit a couple of helpful features – active noise cancellation and control customisation – but access to an impactful graphic equaliser in the Sony Headphones Connect companion app allows you to tune audio to your tastes, which is very welcome. The WF-C500 will also prove a popular choice for those who aren’t fans of touch controls, as they use depressible buttons that take away any guesswork from controlling them.

Oppo teams with Dynaudio for its latest wireless earbuds

Active noise cancellation: We’re seeing more and more wireless earbuds incorporating active noise cancellation technology to reduce the impact of external sound on your audio. If you want the most immersive listening experience, ANC should be high on your priority list. It’s amazing what the best wireless earbuds are capable of thanks to advancements in Bluetooth, noise-cancelling, microphone and audio driver technology. writing this review after 1.3 year of usage (I had to change the ear-tip in the photo), To be clear I had never used TWS before this, so take my review accordingly... Endurance test data is based on OPPO laboratory tests conducted at 50% volume. Charging times are based on measurements taken at 25 degrees Celsius in OPPO’s laboratories using the standard OPPO charger. Specific endurance and charging performance will vary based on actual conditions.

Battery life: Earbuds will always have a stated battery life, as will the case used to charge them. Between 15 and 20 hours of total listening time is around average, though your mileage will vary depending on the volume at which you play your audio. Having advanced features such as ANC active will also drain your battery faster. Codecs determine how Bluetooth transmits information to your device. The SBC codec is pretty much universal across all devices and works just fine, though you’ll open up the possibility to listen to higher resolution audio with more advanced codecs such as AAC, which is favoured by Apple, or Qualcomm’s aptX, aptX HD or aptX Adaptive codecs. Bear in mind that your output device must also support the codec: iPhones don’t support aptX so even if you own the very best wireless earbuds money can buy, you won’t be able to make use of it. Can I make and receive phone and video calls?IPX4 water resistance protects against everyday splashes and spills, but cannot guarantee protection under more extreme conditions. To prevent damage from sweat, please avoid wearing the head phones during intense physical activity. The Sony WF-1000XM4 Truly Wireless have a customizable sound profile and a great noise isolation performance. They have a recessed treble range compared to the next-generation Sony WF-1000XM5 Truly Wireless. Their noise isolation isn't as impressive as the next-gen, either. The midrange is detailed enough to extract all the nuance from Yorke’s vocal, while at the top of the frequency range there’s a great combination of substance and shine. Treble sounds will glint brightly when required, but even at considerable volume they never become hard or unruly.

Our keen-eared reviewers listen to a huge variety of musical genres from a range of sources during testing, including Spotify, Tidal and locally stored audio files. We’ll also put earbuds through their paces across whichever Bluetooth codecs they support using a compatible device and feed them high-resolution content if they have Hi-res capabilities. In almost every respect, the Oppo Enco X sound like the money’s-worth. Given the right stuff to deal with – by which, inevitably, we mean a nice big high-resolution audio file - the results are seldom less than impressive. By ‘dangling stem’ standards the Oppo are reasonably discreet, mind you, and at 4.8g per earbud they’re hardly a burden to wear. Oppo provides many sizes of eartip in a selection of hardnesses, so getting the Enco X comfortable in your ear shouldn’t be difficult or time-consuming – and once they’re in place, they remain comfortable for hours on end. OPPO Enco Buds are compatible with Bluetooth® 5.2 or lower enabled devices running both iOS and Android.The earphones are IP54 dust and water resistant, but the charging case is not. Avoid using the earphones and charging case during strenuous exercise to prevent damage from perspiration. Coming to the buds, they sport a familiar design, with the head opting for a semi-in-ear fit and a long stem underneath. The outer part of the stem has a long vertical stripe which is actually a touch-sensitive surface (more on that later). Unlike most earbuds of this kind, the Oppo Enco Free has actual replaceable tips, which can be chosen based on the sort of a fit the user prefers. I believe that this is a superior way of interacting with your buds as taps on TWS buds usually shove them deeper into the ears making things uncomfortable. A swipe instead just glides across the surface. It is also more responsive and granular. Moreover, since a swipe is a two-dimensional movement (as opposed to the one-dimensional tap), it can also be used for a lot more scenarios which are more apt for content consumption.