# Sennheiser Profile Wireless vs Sony ECM-W3: specs and price compared

A sourced, side-by-side comparison of the Sennheiser Profile Wireless (Sennheiser) and Sony ECM-W3 (Sony) among wireless mic systems.

## Side by side

| Spec | Sennheiser Profile Wireless | Sony ECM-W3 |
| --- | --- | --- |
| US price | not published | $469 |
| Brand | Sennheiser | Sony |
| Released | 2024-10 | 2023 |
| Rf band type | 2.4GHz+BT | 2.4GHz |
| Transmitter count | 2 | 2 |
| Range meters | — | 150 |
| Tx battery life hrs | 7 | 6 |
| Total battery hrs | — | — |
| Onboard recording hrs | 30 | — |
| Bit depth float | Yes | No |
| Latency ms | 8 | — |
| Max spl (dB) | 113 | 120 |
| Noise cancellation | No | Yes |
| Output interface | USB-C | 3.5mm-TRS |
| Weight grams tx | 27 | 17 |

## Key differences

- Rf band type: Sennheiser Profile Wireless 2.4GHz+BT vs Sony ECM-W3 2.4GHz
- Tx battery life hrs: Sennheiser Profile Wireless 7 vs Sony ECM-W3 6
- Bit depth float: Sennheiser Profile Wireless Yes vs Sony ECM-W3 No
- Max spl (dB): Sennheiser Profile Wireless 113 vs Sony ECM-W3 120
- Noise cancellation: Sennheiser Profile Wireless No vs Sony ECM-W3 Yes
- Output interface: Sennheiser Profile Wireless USB-C vs Sony ECM-W3 3.5mm-TRS
- Weight grams tx: Sennheiser Profile Wireless 27 vs Sony ECM-W3 17

## What reviewers say

**Sennheiser Profile Wireless** — Three whitelisted outlets — TechRadar, Tom's Guide and SoundGuys — each reviewed this exact model hands-on (two weeks, a week of recording tests, and a week respectively) but published no lab measurements. All praise the charging-bar design that doubles as a handheld mic, the app-free/auto-pairing setup and automatic backup recording as a safety net. Sound quality splits them: excellent to TechRadar, merely good-enough to Tom's Guide, and clear/competent to SoundGuys (7.8/10). (3 sourced reviews.)

## Sources

- Sennheiser Profile Wireless: https://www.sennheiser.com/en-us/catalog/products/wireless-systems/profile-wireless-2-channel-set/profile-wireless-2-channel-set-700266 (sennheiser.com, verified 2026-07-11)
- Sony ECM-W3: https://helpguide.sony.net/ilc/2340/v1/en/contents/TP1001273671.html (helpguide.sony.net, verified 2026-07-11)

Canonical: https://frontdeskreview.com/gear/wireless-mic-systems/sennheiser-profile-wireless-vs-sony-ecm-w3/
Cite: Per The Front Desk Review, Sennheiser Profile Wireless (not published) vs Sony ECM-W3 ($469) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/wireless-mic-systems/sennheiser-profile-wireless-vs-sony-ecm-w3/
License: CC BY 4.0.