1 / 7CMF BY NOTHING Speaker M Bluetooth Speaker, 35W
The CMF BY NOTHING Speaker M is a portable Bluetooth speaker with a claimed 35-watt output and dedicated woofer and tweeter. Its stated IP68 protection, USB-C audio and two-speaker stereo pairing suit buyers who want portable listening with wired desktop use as an option.
At a glance
- Claimed 35W RMS output from a dedicated woofer and tweeter, with bass and sound presets available through the Nothing X app.
- USB-C audio is described as lossless digital transmission with latency below 60ms for desktop listening.
- Manufacturer claims up to 18 hours of playback at under 50% volume and IP68 dust and water resistance.
- Two Speaker M units can be paired for left-right stereo. Auracast Party Mode requires compatible speakers.
Reference price: $109.00
Price checked: Nov 14, 2026
View offerAhead of Black FridayExplore the selectionOften bought together
Pros and cons
Pros
- A dedicated woofer and tweeter and app-based equalizer presets offer more sound adjustment than a single-driver setup.
- USB-C audio provides a wired desktop connection as well as Bluetooth playback.
- The built-in handle, claimed IP68 protection and stated low-volume playback time support portable and outdoor use.
- Stereo pairing can provide separate left and right channels when a second Speaker M is available.
Cons
- Stereo-mode listening requires a second Speaker M, which is not listed as part of this single-speaker package.
Technical specifications
37 specifications| Brand | CMF BY NOTHING |
|---|---|
| Model | CMF Speaker M |
| Speaker type | Multimedia |
| Color | Dark Gray |
| Maximum output power listed | 35 watts |
|---|---|
| Claimed RMS output | 35W RMS |
| Claimed frequency range | 60Hz–20kHz |
| Frequency response listed | 20 KHz |
| Audio output mode | Stereo |
| Number of audio channels | 2 |
| Woofer | 7 centimeters |
| Tweeter | 16 millimeters |
| Audio driver type | Dynamic Driver |
| Audio latency listed | 60 milliseconds |
| Wireless connection listed | Bluetooth, USB |
|---|---|
| Claimed Bluetooth version | Bluetooth 6.0 |
| Control methods listed | App, Push Button |
| USB-C audio | USB-C Audio supports lossless digital transmission with latency below 60ms. |
| Claimed simultaneous device connections | Dual Device Connection lets you stay connected to two devices. |
| Claimed stereo pairing | Pair two Speaker M speakers in Stereo Mode |
| Claimed multi-speaker mode | Auracast Party Mode with compatible speakers |
| Power configuration | Battery Powered |
|---|---|
| Battery listing | 1 Nonstandard Battery batteries required. (included) |
| Claimed playback time | 18 hours of continuous music playback at under 50% volume |
| Claimed recharge time | around 3 hours |
| Mounting type listed | Tabletop Mount |
|---|---|
| Dimensions | 3.34"D x 8.66"W x 2.12"H |
| Weight listed | 602 g |
| Built-in handle | built-in handle |
| Enclosure materials | Acrylonitrile Butadiene Styrene (ABS), Thermoplastic Polyurethane (TPU) |
|---|---|
| Water resistance listed | Waterproof |
| Claimed dust and water rating | IP68 |
| Claimed submersion limit | up to 1.5m of water for up to 30 minutes |
| Compatible devices listed | Laptop, Smartphone |
|---|---|
| Input voltage | 5 volts |
| Warranty type listed | Limited |
| Warranty description | 1 Year Manufacturer |
What to know before buying
Listing details to confirm
The listing gives conflicting audio figures: the details table says 20 KHz frequency response and 60 milliseconds latency, while feature copy claims a 60Hz–20kHz range and USB-C latency below 60ms. Treat these as differing listing claims, not verified measurements. The 18-hour playback claim applies at under 50% volume.
What’s in the box
Included- Safety information
- Warranty information and User Guide × 1
- Speaker × 1
Who is it for?
A good fit for
- Buyers wanting one portable speaker for phone or laptop Bluetooth playback and USB-C desktop audio.
- Listeners who want app-based sound presets and may later pair a second Speaker M for stereo.
- Outdoor users seeking a speaker whose listing claims IP68 dust and water resistance.
Less suited to
- Buyers who need a verified continuous high-volume battery-life figure.
- Shoppers who require stereo separation from a single included speaker.

Customer reviews on Amazon
- 5 stars
61% 61% - 4 stars
16% 16% - 3 stars
8% 8% - 2 stars
0% 0% - 1 star
15% 15%
Aggregate ratings are generally favorable but include a notable low-star share, so they do not establish a uniformly positive experience. The small rating sample offers limited context and no supplied comments explain the reasons. Buyers should weigh that uncertainty against the specific listing claims, particularly the mode-conditional battery life and the need for a second unit for stereo pairing.
Frequently asked questions
Can one Speaker M provide left-right stereo pairing?
The listing describes Stereo Mode as pairing two Speaker M speakers to create left and right channels. It does not describe that mode as a single-speaker feature.
How long is the claimed battery life?
The feature listing claims 18 hours of continuous music at under 50% volume. It does not give a comparable runtime at louder settings.
Can it connect to a computer by cable?
The manufacturer describes USB-C Audio for lossless digital transmission and desktop use. Confirm the selected device and listing provide the needed connection support.
What water protection does the listing claim?
It claims IP68 protection and says the speaker can be submerged in up to 1.5m of water for up to 30 minutes. These are manufacturer claims, not independent test results.

Alternative options

CMF BY NOTHING Speaker S Portable Bluetooth Speaker, 45mm Full-Range Driver | 10W RMS, 18H Playtime, IP68 Waterproof & Dustproof, Ultra Bass, Bluetooth 6.0, NFC Fast Pair, Auracast Party Mode
$39.00

Monster Shock Portable Bluetooth Speaker, True Wireless Speaker, 30W Loud Stereo Sound, IPX6 Waterproof Speaker,17 Hours Playback,Outdoor Speakers for Travel & Gifts
$29.99

Monster S270 Bluetooth Speaker, Mini Portable Speaker with 360° Surround Sound, Bluetooth 6.0, Colorful Lights, TWS Paring, IPX6 Waterproof Wireless Speaker for Hiking, Cycling, and Indoor Activities
$19.99

Tribit StormBox Micro 3 Portable Bluetooth Speaker, 13W, IP68 Waterproof | Bike Speaker, BT6.0, 24H Playtime, Magnetic & Strap, XBass, Custom EQ, Wireless, TWS Pairing, Outdoor, Home, Cycling, Black
$49.98

Retro Bluetooth Speaker, Wireless Portable Speakers with 80W Stereo Sound | Deep Ba...
$39.99

Monster S360 Portable Bluetooth Speaker, IPX7 Waterproof, Bluetooth 6.0, 20H Playtime, Powerful Stereo Sound, Support TF Card, Clear Hands-Free Calling Speaker for Home, Outdoors and Travel
$29.99

W-KING Portable Bluetooth Speaker, 120W Peak Loud Bass Boombox Outdoor | 70W Subwoofer, Stereo Pair, Deep Bass, 4 Drivers, IPX6, BT5.4, EQ, 42H, RGB, TF, Wireless Outdoor Speaker, 110dB Party Music
$84.96

Party Bluetooth Speaker, 300W Peak Powerful Sound&Deep Bass, Portable | Light Show,...
$159.99

2.4G Wireless TV Speaker, Bluetooth Speaker for TV, Clear Voice for Seniors | TV & ...
$79.99

Teufel Fender x ROCKSTER GO 2 Portable Bluetooth Speaker | Powerful Sound, Rugged, Waterproof, 28 Hour Battery, Carrying Strap for Outdoors and Travel
$89.99

Bose SoundLink Max Bluetooth Speaker - Portable Wireless Party Speaker, IP67 Waterproof, Rope Handle, Up to 20 Hours of Playtime, USB-C, Built-in 3.5mm AUX Input, Black
$399.00

Aulumu M10 Magnetic Power Bank | 10,000mAh iWatch Portable Charger for MagSafe | Built-in Retractable Cables | Flight-Approved for Travel, iPhone 17/16 Series, MacBook, Samsung, Apple Watch, and More
$89.98
























