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Actually Distinctive Design Meets Good Sound

The Breakdown

Your seek for fashionable, feature-laden but reasonably priced TWS earbuds ends right here. Try the Costar Diamond ON T300 True Wi-fi Earbuds! Essentially the most notable characteristic of the TWS earbuds is their awe-inspiring design. The extremely proficient designer workforce at Costar has designed a futuristic edge. The audio machine sports activities a symmetrical, geometric, and linear design.

Except for sporting a extremely interesting diamond-shaped design, the Diamond ON T300 boasts a formidable array of options. Additionally, it undergoes over a whopping 300 iterations. Additional, it undergoes a pearlescent baking course of that creates 20 flawless aspects. Notably, audio gadgets have come a good distance from the times once they simply produced sounds. Now, there’s no dearth of merchandise that audiophiles can get hands-on.

Additionally, fashionable audio gadgets deal with portability. So, you may hearken to your favourite observe even on the go. Likewise, they arrive with a number of settings that you should utilize to regulate the audio output. Regrettably, most newfangled audio merchandise aren’t straightforward on the pocketbook. Nonetheless, when you purchase a pocket-friendly different, you’d find yourself compromising on options. That’s the place the Diamond On T300 True Wi-fi Earbuds come into the image.

The Diamond On T300 True Wi-fi Earbuds strikes an ideal steadiness between affordability and useability. First off, let’s check out the Diamond On T300 key specs.

Diamond On T300 True Wi-fi Earbuds Technical Specs

  • Transparency mode
  • Gaming mode with 70ms low latency
  • IPX4 water & sweat resistant
  • 16-hour whole playback
  • 25dB Energetic Noise Cancellation

Awe-Inspiring Options

Regardless of carrying an inexpensive price ticket, the Diamond On T300 provides a myriad of fantastic options. In contrast to most pocket-friendly Costar Diamond On T300 TWS earbuds, the Diamond On T300 comes with ANC help. A myriad of main manufacturers has not too long ago made their foray into the audio phase. These manufacturers supply all types of audio gadgets comparable to neckbands, headphones, and extra. To recap, OnePlus and Boat surpassed different manufacturers in India’s neckband phase final month.

So, Costar has spared no effort in a bid to supply high options on the Diamond On T300. The earbuds’ energetic noise cancellation functionality is fairly spectacular. The characteristic restricts exterior noise to let customers get pleasure from an immersive listening expertise. Nonetheless, Costar didn’t neglect the security of the person. You possibly can change the transparency mode on to hearken to exterior noise. Notably, this ensures you’re conscious of your surrounding.

Costar Diamond On T300_review_ANC

Furthermore, the Diamond On T300 delivers an immersive bass expertise. In consequence, each beat is crystal clear. The TWS earbuds use a redesigned 10mm customized speaker. Additional, its inner elements are positioned meticulously to supply an unparalleled listening expertise. You’d usually have to shell out some huge cash to buy TWS earbuds that provide the aforesaid options. Nonetheless, the brand new Costar TWS earbuds don’t value a bomb.

Different Awe-Inspiring Options

Additionally, the Diamond On T300 is suitable with well-liked voice assistants together with Google Assistant and Siri. So, you may carry out a number of duties just by giving voice instructions. As an illustration, you should utilize a single click on to reply a name. You possibly can double-click to reject or finish a name. Furthermore, you may play/pause and go to the following music with a triple click on. Likewise, you should press and maintain the earbuds for two seconds to summon the voice assistant.

Costar Diamond On T300_review_other features
Additionally, you may activate clear, recreation, or ANC mode by urgent and holding for a few seconds. Additional, these earbuds carry an IPX4 score for water and sweat resistance. You possibly can put on them to the fitness center and depart your fear about sweat behind. The Diamond On T300 additionally helps a Commonplace Mode and a 70ms Extremely Low Latency Recreation Mode for an improved gaming expertise.

A Design That’s Assured To Flip Heads

One of the vital notable elements of the Diamond On T300 is its distinctive artwork design. Costar’s extremely expert design workforce has provide you with a extremely interesting design for the earbuds. The audio machine adopts a symmetrical, geometric, and linear design that creates a revolutionary edge. Except for this, the earbuds weigh solely 110 grams. So, they match comfortably contained in the ear for a very long time with none form of discomfort. It’s protected to say that the earbuds’ diamond-shaped design is interesting, in addition to helpful.

Costar Diamond On T300 - Review_design

The earbuds can simply match inside your pocket even with the charging case. Notably, the earbuds and the charging case are fairly light-weight. On high of that, you may select between three eye-catching shade choices. These embrace Dynamic Black, Sensible Gray, and Elite White. We bought the white-tinted mannequin that appears elegant and suits within the palm. Furthermore, the earbuds have undergone over a whopping 300 iterations. Costar makes use of the pearlescent baking course of to create twenty interesting aspects.

Sensible Design

The Costar branding is on the highest of the case. Upfront, the case homes a mini-LED charging indicator. The Kind-C port for charging is on the market on the backside. Additional, the case sports activities a matte end that avoids fingerprints. Furthermore, the earbuds sport the identical diamond design because the case. Notably, the stems have a flat finish. These user-friendly might give the Diamond On T300 an edge over the upcoming Nothing Ear (2).

Costar Diamond On T300_review_practical design
The Nothing Ear (1) successor has reportedly handed via the Indian BIS certification web site. Additionally, the Diamond T300 TWS earbuds carry an IPX4 score for splash resistance. We examined their splash resistance capabilities by carrying them amid a delicate downpour. A lot to our delight, the earbuds continued working. Nonetheless, it is suggested to not put on them close to big quantities of water. Nonetheless, you may put them throughout fitness center and outside actions.


What’s Inside The Field

The bundle contains earbuds and a charging case. Additionally, it features a Kind-C cable and a person guide. You get six further ear suggestions ( 3 pairs) within the field, as nicely. You possibly can select between two totally different sizes of ear suggestions primarily based in your consolation. Furthermore, the ear suggestions sport the identical white shade theme because the charging case.

Costar Diamond On T300 - Review_box content
We used the earbuds for film watching, music, and gaming and located them fairly comfy. Additional, the size of the bundle are 10 x 9.9 x 4.4 cm and it weighs 110 grams.

Immersive Sound High quality & Superb Options

The Diamond On T300 helps the ANC (Energetic Noise Cancellation) characteristic. Nonetheless, most audio gadgets on this worth phase don’t supply this characteristic. The ANC characteristic works fairly nicely when it comes to blocking exterior noise. Most earbuds have passive noise isolation. In-canal earbuds are normally extra environment friendly in terms of blocking ambient noise. Additionally, we discovered that you simply won’t have to activate the ANC mode except you’re in an overcrowded surroundings.

Costar Diamond On T300_review_music_1

Furthermore, the TWS earbuds have a extremely advantageous transparency mode. This mode turns out to be useful once you wish to hear to a different individual even whereas carrying the earbuds. It allows the wearer to hear higher and be alert to what’s taking place of their surrounding with out eradicating the earbuds. Likewise, you don’t have to pause the music both. So, you may flip the transparency mode on to listen to your environment once you’re motion pictures or listening to your favourite tune.

Readability Like By no means Earlier than

We used the earbuds to hearken to a myriad of various genres of songs. The bass drop within the songs was thumpy, and the punch was fairly spectacular, as nicely. So, you may wish to contemplate shopping for the Diamond On T300 when you’re a bass lover. Furthermore, the vocals are soothing and wonderful. Furthermore, the instrumentals struck an ideal steadiness between depth and vocals.

Costar Diamond On T300_review_clarity

We additionally discovered Bollywood tracks to be immersive on the Costar Diamond On T300. General, the Diamond On T300 is good for audiophiles who wish to deal with themselves to a superior music session. We consistently saved the music most at 70 p.c. We discovered the perfect audio output at 60 p.c. Nonetheless, when you hearken to music at 80 p.c or above, it can really feel fairly harsh on the ears.

Seamless Connectivity & Consumer-Pleasant Contact Controls

The method of pairing the Diamond On T300 is easy as A, B, and C. If you take the earbuds out of the field for the primary time, merely press and maintain them for about 5 seconds. Now, this can activate the pairing mode. Subsequent, activate the Bluetooth in your laptop computer or smartphone. The Costar Diamond On T300 will seem below the Out there gadgets part.

All you should do to pair the earbuds to your machine is to faucet on the earbuds’ title. These earbuds use Bluetooth 5.0 for a fast pairing just like the OnePlus Buds Z. We discovered the pairing course of to be seamless. Additionally, it provides a reasonably good vary. We went to a different room, leaving the paired machine behind however the earbuds didn’t disconnect. You need to use numerous contact controls on the earbuds to entry totally different modes.

  • Faucet on the earbuds twice to reply or finish calls
  • Press on the earbuds for about 2 seconds to reject incoming calls
  • Faucet on the left/proper earbud 3 times to summon a voice assistant
  • You possibly can faucet on both of the earbuds to play or pause music and video
  • To skip to the following video or music, merely faucet twice on one of many earbuds
  • By urgent and holding the earbuds for two seconds, you may activate the transparency mode
  • You possibly can press and maintain on the earbuds for two seconds to activate ANC
  • Lastly, you may faucet on the earbuds thrice to enter into gaming mode

Improve Your Gaming Expertise

The Diamond On T300 TWS earbuds provides avid avid gamers one thing to cheer about. This feature-laden audio machine comes with a devoted recreation mode. You possibly can cut back the latency to 70ms whereas taking part in your favourite titles. We performed WWE2K on a smartphone and GTA: San Andreas on a laptop computer with out experiencing any latency after turning on the sport mode.

Costar Diamond On T300 - Review_gaming
The firing sounds and reloads had been clearly audible and in sync. Additional, the mic high quality on these earbuds is fairly good. We used them for calls and the receiver might hear our voice clearly. You possibly can additional improve the calling expertise by activating the ANC characteristic.

Lengthy Lasting Battery Life

The Diamond On T300 TWS earbuds ship dependable battery life for the worth. We watched a number of episodes of our favourite internet sequence for practically two hours when the battery was totally charged. After two hours of utilization, the battery has dropped to 60 p.c. We even activated the ANC and transparency mode however the battery didn’t disappoint. Additional, the case takes roughly about 60-80 minutes to cost totally. Additionally, you may prolong the battery life by deactivating the ANC mode.


In case you’re available in the market for feature-rich earbuds that don’t value a bomb, the Diamond On T300 will fill the invoice. Furthermore, its distinctive design will certainly flip heads. General, they allow you to stand out from the group. We’ve been utilizing these earbuds for watching movies, gaming, and listening to music even whereas touring. The ANC characteristic turns out to be useful to offer an immersive listening expertise even on the go.

Costar Diamond On T300 - Review_verdict

So, the Diamond On T300 is price contemplating when you’re a frequent traveler who consumes quite a lot of media. Additional, each ANC and the transparency mode turned out to be wonderful for the worth. In case you play quite a lot of video games in your cell phone or laptop computer, you may wish to get your fingers on these earbuds. The sport mode on the earbuds significantly reduces latency whereas gaming. Additionally, the earbuds supply sufficiently good mic high quality and battery life.

Worth & The place To Purchase

The Diamond On T300 TWS earbuds can be found on the official Costar web site. Alternatively, you should purchase earbuds from Amazon. Furthermore, you may avail your self of a whopping 58 p.c low cost on the earbuds. The Diamond On T300 earbuds are at the moment obtainable for a lowered worth of simply INR 1,799 on Amazon India. The low cost can also be obtainable on the corporate’s official on-line retailer.

Costar Diamond On T300 - Review_buy
Nonetheless, the earbuds will return to their authentic asking worth of INR 3,999 when the promo ends. So, you may head straight to Amazon or Costar’s web site and save INR 2,300 in your order. Additionally, you may make the most of 4 unmissable provides on Amazon. First off, you may get rewards price INR 1,500 and extra and three p.c again in your Amazon Pay ICICI Financial institution bank card. There’s a ten p.c on the spot low cost of as much as INR 1,250 for SBI Credit score Card holders. The identical low cost is on the market on Non-EMI Transactions, as nicely.

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