Tronsmart Onyx Ace True Wireless Bluetooth Earphones Review


  • Bluetooth 5.0 true wireless earbuds
  • IPX5 water resistance for sweat, splash and rain-proof design
  • Go mono stereo, whichever you prefer
  • Up to 24 hours of playback total; 5 for the earbuds and an additional 19 via the (included) charging case
  • Noise cancellation and call answer support
  • Voice assistant support
  • Touch controls for quick access



Model Onyx Ace
Colors White, Black
Technology Qualcomm aptX audio technology, cVc 8.0 noise cancellation technology, Environment Noise Cancellation technology, DSP
Chip Qualcomm® QCC3020, supports aptX, AAC, SBC
Bluetooth Version 5.0
Bluetooth Compatibility HFP/HSP/AVRCP/A2DP
Transmission Distance Up to 15 meters / 50 feet
Water Resistant IPX5
Battery Capacity Earphone: 40 mAh; Charging case: 400 mAh
Play Time Earphone: up to 5 hours (50% volume); Charging case: up to 24 hours (50% volume)
Standby Earphone: about 60 hours; Charging case: 90 days
Charging Time Earphone: about 1 hour 20 minutes; Charging case: about 1 hour 30 minutes
Frequency Range 20 – 20K Hz
Driver Unit 13mm
Impedance 32Ω
Microphone Sensitivity -42dB ± 1dB
EAN Code 6970232013670
Dimension Earphone: 39 x 16.5 x 16.8 mm / 1.54 x 0.65 x 0.66 inches; Charging case: 48 x 23 x 57.5 mm / 1.89 x 0.9 x 2.26 inches
Net Weight Earphone: about 4 g / 0.14 oz ; Charging case: about 37 g / 1.31 oz
Package Contents 1 x Onyx Ace True Wireless Earphones with Charging Case, 1 x Charging Cable, 1 x Warranty Card, 1 x User Manual


Now let us open the box and see what awaits us!




As far as the packaging goes the Tronsmart Onyx Ace True Wireless Bluetooth Earphones will arrive in your typical packaging. The box come nicely detailed with a white and purple color scheme. The front has a nice graphic of the earbuds. The back of the box highlights a few of the features of the earbuds.


  • Onyx Ace True Wireless Earphones with Charging Case
  • Charging Cable
  • Warranty Card
  • User Manual

Now let us see what this speaker offers in Performance and take a closer look at the Tronsmart Onyx Neo True Wireless Bluetooth Earbuds itself!


Performance and Closer Look

Equipped with the Qualcomm® aptX™, DSP & Qualcomm® cVc™ noise cancellation technologies, Onyx Ace true wireless earbuds deliver high-quality studio-quality audio and crystal-clear calls via 4 mics with noise reduction. , and you can check out the aptX link here.


Now you may ask what is aptX certification exactly? Well I’m glad you asked.

Technical Specifications

  • Sound quality
    • THD+N@1kHz: -67dB
    • SNR@1kHz:  93dB
    • PEAQ audio quality:-0.18
    • Qualcomm® Kalimba™ MHz DSP technology: 42MHz@48KHz stereo decode ~45MHz@48KHz stereo encode
  • Audio Encoding
    • 16-bit, up to 48kHz sampling rate
  • Program memory usage
    • 3.3kwords (encoder) / 3.6kwords (decoder)
  • Data memory usage
    • 1.8kwords
  • ARM MHz
    • ~63MHz (stereo encode) on ARMv7A with NEON
  • Bit Rate
    • 384 kbps (48 kHz sampling)


Ultra Clear and Loud
Quad-microphone works with Environment Noise Cancellation technology to ensure crystal clear calls by identifying your voice intelligently and filter out the background noise. Guarantee you a clear and loud call quality even in a noisy environment.
Be Aware of Your Surroundings
Thanks to the half-in-ear design, it lets in some ambient sound to allow you to know what’s happening around you, such as remind you to be careful of the traffic.
Cutting-edge Qualcomm Technology
The genuine Qualcomm chip provides the most stable connection, delivering exceptional performance with consistent audio streaming.
Lossless aptX™ Audio
True Qualcomm aptX audio technology works with the enlarged 13mm driver to deliver hi-fidelity studio quality sound that’s clear and bassy.

Four indicators for telling the remaining power:

  • If four LED lights go on in sequence it means that the charging case is recharging.
  • The First LED lights goes on when the right earbuds is charging.
  • The Fourth LED lights goes on when the left earbuds is charging.

Well lets take a quick look at the Conclusion and Verdict on the final page!


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About Chris 568 Articles
Chris has been a long time enthusiasts of anything computer related. He is a 2010 Graduate with a Bachelor's degree in Computer Science. His expertise ranges from simple coding to systems analysis. He has always enjoyed exploring the vast world of computer hardware and now gets to share that passion with all funky followers!