Sennheiser announced a one-channel version of its Profile Wireless 2.4 GHz all-in-one microphone solution. I reviewed the 2-channel model and liked it a lot.

The streamlined single-mic system comes in a compact bag and includes a second USB charging cable instead of the charging bar of the two-channel version launched in late 2024. Designed to be lightweight and ultra-portable, the one-channel version covers typical usage scenarios of solo creators, while allowing for later expansion of the system by including the same two-channel receiver as the Profile Wireless 2-channel system. Also, a 32-bit float firmware update for all Profile Wireless systems is available for download on the Sennheiser website from today.


Just like the two-channel version, the solo system is quick and easy to set up – no app required. It can be used on cameras, with smartphones and computers, and can be combined with an external lavalier microphone or even used to create a wireless boom. The mic has an operating time of up to seven hours, and 16 GB of memory for up to 30 hours of internal recording.

The Profile Wireless 1-channel mic system comes in a rugged pouch that includes the clip-on microphone with mini windshield and magnetic mount, a two-channel receiver, two USB cables, USB-C and Lightning adapters, a camera cable, and a shoe mount adapter. All Profile Wireless components can also be bought separately, allowing expansion to two channels at a later date.
32-bit float update for Profile Wireless

Sennheiser states that users requested the addition of a 32-bit float recording option. They listened, and with a new Profile Wireless firmware update, it has been added.
32-bit float functionality allows you to record with extremely high dynamic range and helps recover clipped audio.
For 32-bit float recording, Profile Wireless combines the audio signals of the two A/D converters inside the Profile Wireless mics to create a single 32-bit float audio stream.

Creators who prefer 24-bit recording due to its lower memory requirement still have the option to deactivate 32-bit float recording and turn on the Safety Channel Mode. This will output a ‑6dB version of the audio in addition to the original sound level and thus help protect against clipping.
To update their Profile Wireless system to firmware version V4.1.0, you are asked to visit www.sennheiser.com/profilewireless. Under Downloads, you will find various firmware updates for Mac and PC, with a smart tool guiding you through the update process for the receiver and transmitter(s). The first batches of the Profile Wireless 1-channel mic also need to be updated to firmware version V4.1.0.
With the addition of the one-channel system and 32-bit float recording, Profile Wireless becomes the most versatile tool for creators who value excellent sound and see it as a key differentiator for quality content.
Pricing and Availability
The Profile Wireless 1-channel mic is available now and retails at EUR 199 (MSRP), USD $199 (MAP), or GBP 169 (MSRP).