TRN T350

True Wireless TWS
1 Knowles balanced armature and 1 dynamic graphene driver Bluetooth earphone
QCC3071 Bluetooth 5.3 chipset
Low-latency Gaming mode
aptX Adaptive codec
8mm dual-magnet graphene dynamic driver
Knowles balanced armature
3D-printed resin shell
TRN T350TRN T350
Please note: Photos are for illustration purposes only.
Actual products may vary in appearance or specification.

Total upgrade with 9 improvements

Qualcomm QCC 3071
Qualcomm QCC 3071 Bluetooth 5.3 chipset
Better connection stability, lower power consumption
Imported Knowles balanced armature
Pristine clarity and sound transparency
8mm dual-magnet dynamic driver
Graphene diaphragm
aptX Adaptive codec
Near CD-quality sound
68ms low latency
Almost lag-free connection
3D-printed resin shell
Imported medical-grade resin
Wireless charging
Supports Type-C + wireless charging
cVc Noise Cancellation Technology
Noise-free communication without distractions
Ergonomically designed
Conforms to the human ears

Latest Qualcomm QCC3071 Bluetooth 5.3 chipset

TRN adopts the new generation of Qualcomm QCC3071 Bluetooth 5.3 chipset with lower latency, lower RF interference, lower floor noise, and a more stable connection.
Qualcomm QCC3071 BT5.3 chipset
Bluetooth 5.3
Bluetooth 5.2
Connection stability greatly improved

Knowles balanced armature

Exceptionally Hi-Fi sound quality
Customized 8mm dual-magnet graphene dynamic driver and imported Knowles balanced armature give excellent tonality and musicality. Complimented by a precise crossover circuit to create a pure listening sensation.
TRN T350 dual drivers
8mm dual-magnet graphene dynamic driver
Knowles 33518 balanced armature

aptX Adaptive codec

CD-quality clarity
The new generation aptX Adaptive audio codec can render 24bit/420kbps in high-definition sound quality near-CD standard and reproduce the sound texture and realistic details. At the same time, it adapts to the user's different needs for audio in different application scenarios. No operation is required. AptX Adaptive audio codec adjusted to better audio quality for a better user experience.
* aptX Adaptive audio codec is compatible with Qualcomm Snapdragon 855 platform and above. The device must support aptX adaptive codec natively.
TRN T350 next to smartphone
When listening to music
Adaptive codec switching is not required
Always enjoy high-quality sound, free from interference.
When playing games
Adaptive codec switching is not required
Low latency gameplay. Empower gamers to their heart's content.
During phone calls
Adaptive codec switching is not required
Stable signal connection. Calls are audible even in noisy environments.

68ms low latency gaming mode

You are always ahead of your enemies
Three taps on the right earpiece activate low-latency gaming mode. In this mode, the latency is as low as 68ms. The video matches the audio precisely. Voice synchronization feels smooth and definitive.
* 68ms low latency gaming mode is compatible with Qualcomm Snapdragon 888 platform and above.
TRN T350 next to charging case
Gaming mode: approx. 68ms
Normal mode: approx. 200ms
60%+ reduction in gaming latency

Customed TRN gaming EQ sound effects

Gain better insights into the battlefield
TRN Acoustics researched the gamers' listening habits, allows precise customization of game sound effects, and three taps on the right earpiece enter gaming mode. Footsteps and gunshots become crystal-clear and definite.
TRN T350 next to a smartphone with a running game
Footsteps intensified
Low frequency is enhanced.
Accuracy improves.
Firearm effects enhancement
Distinguishes and identify the proximity and direction of gunfire. Locate your friends and foes more accurately.

Qualcomm True Wireless Mirroring technology

Delivers robust, seamless connectivity for a truly immersive audio experience
TRN T350 supports Qualcomm TrueWireless Mirroring technology because only one earpiece maintains the Bluetooth connection with the smartphone, while the secondary earpiece mirrors the connected unit.
TRN T350 with open charging case
Conventional TWS
The primary earpiece transfers the signal to a secondary earpiece.
TRN T350 TWS True Wireless Mirroring technology
Both earpieces transfer and receive signals simultaneously.

Dual MIC+CVC noise reduction

Enjoy crystal-clear voice calls
TRN T350, equipped with Qualcomm cVc 8.0 Noise Cancellation Technology, delivers the best possible call quality, brings advanced audio enhancements and noise suppression up to 90%, and provides packet loss and bit error concealment.
Ambient noise
TRN T350 with noise reduction graph

3D-printed resin housing

Lightweight and comfortable to wear
TRN T350 adopts DLP-3D printing technology with excellent rigidity, stability, and structural details. Imported hypoallergenic medical-grade resin ensures worry-free and maximum wearing comfort.

Supports wireless charging + Type-C

Standby time is approximately 25 hours
TRN T350 supports wireless or wired charging using the USB Type-C. You can leave your charger at home. A 7-hour overnight charge will last up to 25 hours.
* 68ms low latency gaming mode is compatible with Qualcomm Snapdragon 888 platform and above.
* Battery life will vary depending on listening volume and audio codec.
AAC/SBC audio decoding takes approx. 7 hours.
aptX Adaptive codec decoding takes approx. 5.5 hours.
Wireless chargers are sold separately.
TRN T350 charging box top view

IPX54 dust and water-resistant rating ensures peace of mind

Resist strong winds, drizzle, and sweat. Regardless of rain or shine, running or walking. In the gym or at home. You can enjoy music to the fullest.
* Only both earpieces are IP54 dust and water-resistant ratings, excluding the charging case.
TRN T350 in water

Ergonomic design

Soft touch operation
Our earpieces are molded according to thousands of ear contours and shapes TRN has collected over the years. Fitting earpieces offer exceptional passive noise isolation.
TRN T350 in the ear
Power on
Flip the top cover, and it automatically connects to your paired device.
Activate Gaming mode
Tap 3 times on the Right
Activate Siri
Tap 3 times Left
Tap 2 times Left/Right
Answer/End call
Tap 2 times Left/Right
Reject call
Long press 2 seconds either Left/Right
Long press 1 second for the Previous
Long press 1 second for the Next
Volume +/-
Long press 3 seconds on the Left to increase
Long press 3 seconds on the Right to decrease


Product model
TRN T350
Bluetooth version
Bluetooth audio codec
aptX Adaptive, aptX, AAC, SBC
Effective range
Earphone configuration
1 Knowles balanced armature, 1 dynamic driver
5.8g (single) + 52.5g (case)
Golden black
Battery capacity
35mAh + 500mAh (Earpieces + Charging case)
Charging port
Wireless charging / Type-C
Playback time
AAC, SBC codec - approx. 7h,
aptX Adaptive codec - approx. 5.5h,
use with charging case, approx. 25h standby.
TRN T350 next to a closed charging case

Contents & Packaging

TRN T350 sizeTRN T350 What in the box
Actual product specifications may vary, and all features, functionality, and other specifications are subject to change without notice or obligation.
TRN T300 small picTRN T350 small pic
TRN T300
TRN T350
2BA + 1DD
1 Knowles BA + 1DD
Bluetooth Version
Bluetooth 5.2
Bluetooth 5.3
Bluetooth Latency
Game Mode
Wireless charging
Bluetooth audio codec
aptX, AAC, SBC
aptX Adaptive, aptX, AAC, SBC
-98dBm (Better)
Signal strength
TRN T350 with T-Ear tipsTRN T350 with T-Ear tips in the charging case


Dongguan Zuodu Acoustics Technology Co., Ltd.
5tn Floor, 67 Baisha Road, Humen Town, Dongguan City, Guangdong Province
QQ: 2550039547
Phone: 400-8080-302
Monday to Sunday 8:30 am to 6:00 pm (UTC+8)