Review: TRN BT30 True Wireless Bluetooth Earphone Modules – Freedom from Wires

TRN's BT30 - high power Bluetooth audio and swappable connections.
TRN’s BT30 – high power Bluetooth audio and swappable connections.
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Choose-your-own IEM adventure.

First, a sincere thank you to HiFiGo for allowing Headphonesty to review the TRN BT30. As is my standard, I did not read any reviews before my evaluation.

First Impressions

You say I can take an IEM of my choice on the go with no wires? Oh yeah!!! Super excited about these, as they hold the promise of not making many audio compromises when out and about.

TRN's BT30 - high power Bluetooth audio and swappable connections.
Bottom Line

The wireless BT30 bluetooth TWS adapters are a good complement for true wireless high performance on the go. The BT30 are simple, attractive, well-made, and competent technical performers that will satisfy a wide variety of listeners. They deliver a clear and detailed wide-frequency sound with excellent imaging and an expansive soundstage, presenting quality audio in their own unique way. The functional omissions are, for me, not a deal-breaker.

What We Like
  • Excellent build, fit, and finish
  • Sturdy, well-built with easy-to-use physical buttons
  • Light and very comfortable for extended listening
  • Strong amplification
  • Secure and comfortable fit
  • Bluetooth 5.2
  • Long range and connection stability
  • Overall sound quality and bluetooth performance
  • Long battery life
  • Good carrying case and accessories
  • East swappable connections for different IEMs
What We Don't Like
  • No volume controls
  • Noise/hiss with sensitive IEMs
  • Despite cVc 8.0, microphone pickup is hyper sensitive with no functional noise filtering (calls are not advisable except in an emergency)
  • Charging and storage case will not hold IEMs, only BT30 and ear hook adapters

One major upgrade in functionality for many IEMs can be discovered by connecting to TRN’s BT30 TWS Bluetooth Earphone Modules (True Wireless Stereo), especially for listening on the go and when wires will get in your way. They have impressive credentials, including Bluetooth 5.2, apt-X/AAC/SBC high-definition codecs, and 6.5 hours playback time (20 hours with charging case).

Having just finished my review of the highly competent TRN VX Pro, which pair beautifully with the BT30, I am even more excited to give these a spin in my day-to-day real world outings.

The BT30 packaging is clean, compact, and tidy. The construction is a solid cardboard liftoff cover over base.
The BT30 packaging is clean, compact, and tidy. The construction is a solid cardboard liftoff cover over base.

Company Overview

Launched in 2017, the TRN brand belongs to Dongguan Zuodu Acoustic Technology Co., Ltd. TRN produces a range of High Fidelity (Hi-Fi) IEMs, Bluetooth TWS earphones, cables, and ear tips, most of which are accessible, budget-friendly options that appear to offer high value for price.

“Each TRN product has earphone enthusiasts involved in the development process to ensure that it has the best performance and durability.” – TRN

If you’re a fan of Chi-Fi, TRN is likely a familiar name to you. They have quite a catalog for a young brand, and have made some highly popular and well-regarded products thus far.

Technical Specifications

  • Chipset: Qualcomm QCC3040 supporting Bluetooth 5.2
  • Bluetooth Encoding: apt-X/AAC/SBC high-definition codecs
  • Power: MAX97220A amplifier with >42mW of power @ 16 Ohms, and a SNR of >98dB
  • Effective signal range: 15m (website info; printed manual claims 10m)
  • Noise Cancellation Technology: cVc 8.0
  • Connections: swappable earpiece connectors (2-pin .75mm and .78mm, MMCX)
  • Case: 700mAh portable charging case, USB-C
  • Modules charging time: 1.5-2 hours
  • Charging case charging time: 2.5-3 hours
  • Playback: 6.5 hours, 20 hours with charging case
  • Waterproof and sweat-resistance: nano-coating for moisture protection
  • Weight: 8g (per earpiece)

Packaging

Clean, simple, and well-constructed. Inside the box is a well-made zippered case that holds the BT30 modules. Inside that case is a net mesh pocket that can hold the USB-CC charging cable and extra connectors.

The BT 30 comes with a well-made charging case and USB Type-C charging cable.
The BT 30 comes with a well-made charging case and USB Type-C charging cable.

In the box

  • TRN BT30 true wireless Bluetooth earphone modules
  • Black faux leather carry, charging, and storage case
  • USB-C charging cable
  • User guide
  • Warranty card
  • Inspection qualification card
Super safe and snug.
Super safe and snug.

Design

The BT30 are well made and feel sturdy. The modules are a combination of plastic and soft, flexible, hypoallergenic thermoplastic elastomer (TPE). The singular button on each module is aluminum alloy, providing a properly resistant tactile press.

The ear hooks fit perfectly and attach securely. The shape of the main body is thin enough to not put any noticeable pressure on or behind the ear. They are also compact enough to not excessively stick out from behind your ears.

The BT30 charging and storage case is excellent, other than it cannot hold IEMs.
The BT30 charging and storage case is excellent, other than it cannot hold IEMs.

The charging case is excellent, everything fits perfectly and securely, with the modules pulled securely into place magnetically for charging.

Comfort

The ear hooks are soft enough to be pliable and strong enough to hold securely. I am surprised how well they position the IEMs and fit me each time I wear them. They are comfortable for long listening sessions.

The ear hooks are comfortable and secure, even for long periods of time.
The ear hooks are comfortable and secure, even for long periods of time.

TRN BT30 Performance

The onboard MAX97220A amplifiers with >42mW of power @ 16Ohms, and a SNR of >98dB, means that the BT30 should easily power most IEMs.

Overall performance varies with application. Audio quality with the BT30 is generally excellent, though ever-present low-level signal noise is apparent with highly sensitive IEMs, like the VX Pro. The hiss can be annoying, more to some people than others. If you are not listening to audiobooks or quiet music, it is not likely to be a bother.

The BT30 and the VX Pro fit beautifully together - as they should, they are cousins!
The BT30 and the VX Pro fit beautifully together – as they should, they are cousins!
”TRN BT30 uses the Qualcomm QCC3040 chipset, embracing a new generation of Bluetooth 5.2 technology that brings transmission stability, exceptionally low latency, and improved power efficiency. Experience this modern and advanced true wireless audio technology at its finest.” – TRN

It’s best to do your homework to ensure that your chosen IEMs will fit with the BT30 adapters.

The recessed 2-pin connectors of the Fearless Audio Shangri-La or Provence will not make a secure connection. In addition, while the BT30 are resistant to moisture and great for workouts and training, your IEMs may not be. This is where the advantage goes to TWS earphones specifically designed for training.

The BT30 have three interchangeable arms available for purchase: 2-pin .75mm or .78mm, and MMCX connections.
The BT30 have three interchangeable arms available for purchase: 2-pin .75mm or .78mm, and MMCX connections.

There is another oversight: the volume is not adjustable in any way, physically on the device or with a companion app. The only way to adjust is via your source, not the most convenient if the point is to have freedom from wires and your source device.

I strongly recommend that you turn them on before you put them in your ears.

The built-in power on announcement is absurdly loud (borderline painful) with sensitive IEMs – a very unpleasant user experience.

The excellent aluminum case that comes with the TRN VX Pro is thankfully roomy enough that it can hold the IEMs and either the cable or BT30 modules securely without crushing anything.
The excellent aluminum case that comes with the TRN VX Pro is thankfully roomy enough that it can hold the IEMs and either the cable or BT30 modules securely without crushing anything.

Where to Buy

Conclusion

The wireless BT30 bluetooth TWS adapters are a good complement for true wireless high performance on the go.

The BT30 are simple, attractive, well-made, and competent technical performers that will satisfy a wide variety of listeners. They deliver a clear and detailed wide-frequency sound with excellent imaging and an expansive soundstage, presenting quality audio in their own unique way.

There are competitive alternatives on the market now for varying prices. TRN has done a commendable job with the BT30 as a basic model without lots of bells and whistles (or a companion app). The functional omissions are, for me, not a deal-breaker.

Extra connectors need to be purchased separately.
Extra connectors need to be purchased separately.

These are my go-to options for the gym now, especially when doing lots of movements that can shake TWS earphones loose or alter the sound from changing pressure/gravity. If the BT30 suit your needs, you will enjoy them!

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