[REVIEW] Infinity Tranz 300 – A Modest Sport Bluetooth Earphone

The name Infinity may sound new in earphone market but I’m sure you may have heard of HARMAN KARDON which is a reputable making quality audio product. They are now a subsidiary company of Samsung Electronics.

Recently they have unveiled 10 new audio products that include headphone, earphone and speakers. Folk from HARMAN International sent us two of the new products; Infinity Tranz 300 and Infinity Clubz 250.

Infinity Tranz 300
Infinity Tranz 300 Box

The Infinity Tranz 300 is an everyday use Bluetooth wireless earphone that tuned and developed by HARMAN.

We will be reviewing the Infinity Tranz 300 first and follow by Infinity Clubz 250 very soon.

Infinity Tranz 300 Specification

  • 9mm Dynamic Driver
  • Bluetooth 5.0
  • Impedance: 16Ω
  • Frequency Response: 20Hz~20kHz
  • Bluetooth Profile: HFP V1.7, A2DP V1/3, AVRCP V1.6
  • Battery Life: 7 Hours


It’s a light-weight in-ear design earphone that suitable for everyday use. It has very small size earbuds which are light and comfortable to wear. There are two pills shape that feature the controller and battery.

The controller has 3 buttons; volume and multifunction buttons. The buttons have some textures so you can differentiate them. The matte hard plastic that uses on it is quite cheap like from those non branded Bluetooth earphone. There’s a microUSB on the side for charging and comes with a flip cover to avoid any liquid enter into the components.

It featured magnetic earbuds that connect each other when not in use. No additional features like auto-connect/disconnect when stacked together to save battery.

Sound Quality

I did put some high expectation from a brand that has strong audio product foundation like HARMAN.

There is two EQs (Normal/Deep Bass) which can switch between by press and hold the volume up and down together for 2 seconds.

In Deep Bass mode, the low is pretty enjoyable with deep bass that ideal for a workout but the vocal and instruments separation is pretty weak in this area and increasing volume would boost the bass and covers the mid-tone. As for normal mode, the low toned down and the mid-tone seem to flatten in a big margin.

The voice call quality from the earphone is pretty average and needs to bring the mic closer to talk as it doesn’t have any noise cancelling like CVC and MEMS.

Battery Life

The company claimed the Tranz 300 would able to offers up to 7 hours playback. I’m getting around 2 days of use with an average of to 3 hours play per day. The charging would take around 1 and half hours to completely charge the earphone.

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Infinity Tranz 300 Wireless Earphone Review
  • Design
  • Built
  • Sound Quality
  • Battery Life
  • Value


Would I recommend this earphone? If you had a bad experience of losing one of your TWS earbuds or would just need a budget to-go earphone for a workout, you may consider this type of earphone. Personally, I did find the built of the earphone is pretty poor with cheap plastic and average sound quality despite having reputable big brand HARMAN KARDON behind the company. Besides that, 7 hours of battery life made is pretty short compared it to True Wireless Stereo earbuds.

The Infinity Tranz 300 is available now for RM 139 to RM 149 over at Lazada Malaysia and comes with a 1-year warranty. To be honest, this is quite overpriced if you compared it to the Edifier W200BT SE that going just sub RM 100 and even come with a companion app. I did some digging and found the Infinity Tranz 300 is actually repackaging of Infinity Glide 100 that sold in India for sub-INR 900 (~MYR 50)