​Formula Lab Duo Truly Wireless + Truly Wired Earphones


  • Patented Truly Wireless with MMCX Connectors for use as Wired

  • OFC cable included

  • Qualcomm QCC3026 BT with TrueWireless Stereo Plus for direct L/R channel reception

  • aptX and ACC native support

  • 40,000 Hz Composite HD Driver for superior sound

  • World’s first Antibacterial Protection

  • 8-hour playtime per charge

  • Full function Touch Control

  • Environmental Sound App


Probably the best thing since Wireless Headphones, the new Duo combines the convenience of a Truly Wireless Earphone and the flexibility of a traditional Wired Earphone, giving you unprecedented freedom to enjoy music anywhere, anyway you like.

Duo is a Truly Wireless Earphone with MMCX connectors, meaning you can use it as a Truly Wireless Earphone or plug in a cable and use it as a Wired Earphone. Use Truly Wireless for the gym#1, commuting or just casual listening; and Wired for things like:

Inflight Entertainment

While some newer aircrafts allow wireless headphones, the majority don’t. With Duo you can use it with the included MMCX cable to enjoy music from your phone.


You can also plug it into the aircraft’s entertainment system to enjoy inflight movies, music and shows. Special sound tuning with emphasis between 1kHz and 3kHz ensures vocals and dialogue stay clear against engine background noise in wired mode.


It all happened to us before: you wanted to watch a video on your laptop and only to find that you forgot to charge your wireless earphones! With Duo the cable takes over without the need for any power. When not in use, it can be stored in the included case so it’s always ready. 

Media Players

In the digital world music comes in various formats, and not all of them are wireless-friendly such as those high resolution lossless types. With Duo not only can you enjoy them in their original quality through wired connection but also have the freedom to upgrade to low-interference Balanced cable using its MMCX connectors to get the best result from a compatible media player.


  • Wireless Standard: BT5.0/Qualcomm® QCC3026 with Qualcomm TrueWireless™ Stereo Plus

  • Supported Codec: SBC, AAC, Qualcomm® aptX™ audio

  • Frequency Response: 20Hz - 20,000Hz (Wireless mode), 20Hz - 40,000Hz (Wired Mode)

  • Speaker Type: 6.2mm Composite HD Full-Range Dynamic

  • Wired Connection: 1.2m MMCX Oxygen-free Cable with Mic and Volume Control

  • Battery Capacity - Earphone: 60mAh Li-Ion

  • Battery Capacity - Charger: 500mAh Li-Polymer

  • Weight - Earphone (each): 6g

  • Weight - Charger: 47g

Specifications are subject to change without notice

Qualcomm TrueWireless is a product of Qualcomm Technologies, Inc. and/or its subsidiaries.

Qualcomm aptX audio is a product of Qualcomm Technologies, Inc. and/or its subsidiaries.

Qualcomm is a trademark of Qualcomm Incorporated, registered in the United States and other countries.

Qualcomm TrueWireless is a trademark of Qualcomm Incorporated.

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