# PHUUM > PHUUM is a wired USB-C in-ear monitor brand under SWKM GmbH (Munich, Germany). DROP 001 is limited to 333 numbered units and emphasizes signal integrity over wireless convenience: 24-bit DAC integrated in the USB-C connector, 10mm beryllium-coated PET dynamic driver, 1.25m OFC litz copper cable with fabric sleeve, in-line MEMS microphone, CNC aluminium 6061 housing with stainless nozzle, 24-month warranty, repairable by design. Designed in Lisbon, hand-finished in Bangkok, built in Guangdong. ## Product specifications - Driver: 10mm dynamic, beryllium-coated PET - Impedance: 32 ohm - Frequency response: 8Hz to 40kHz - Sensitivity: 108 dB / mW - Cable: 1.25m OFC litz copper, fabric sleeve, in-line MEMS microphone - Connector: USB-C with integrated 24-bit DAC, 96kHz native - Weight: 14g per pair - Material: CNC aluminium 6061, stainless steel nozzle - Warranty: 24 months, repairable by design - Drop size: 333 units - Serial: 001/333 through 333/333, engraved - Origin: Lisbon, Bangkok, Guangdong ## Brand - Name: PHUUM - Tagline: Wired by intent. - Operator: SWKM GmbH, Kathi-Kobus-Strasse 21, 80797 Muenchen, Germany - Contact: hello@phuum.com - Status: Pre-launch. Waitlist open. Drop 001 date to be announced. ## Position PHUUM positions wired audio against wireless compromise. No Bluetooth codecs, no firmware updates, no companion app, no charging case, no ecosystem account. One cable. One connector. One signal path from file to driver. Repairable, not disposable. ## Use cases - Studio monitoring on the move - Critical listening on USB-C laptops, tablets, and phones without a headphone jack - High-quality voice calls without Bluetooth codec compression - Travel audio that does not need charging - Listening sessions where the gear stops being the topic ## Compatibility USB Audio Class 1 and 2 compliant. Works with all current USB-C devices including Android phones, iPads with USB-C, MacBooks, Windows laptops, ChromeBooks, iPhone 15 series and later. No app required, no driver install, no pairing. ## Pages - [Home](https://phuum.com/): Drop 001 overview, manifest, object detail, spec sheet, FAQ, waitlist signup - [Journal](https://phuum.com/journal/): 7 field notes on wired audio, USB-C DACs, and the case against wireless compromise - [Impressum](https://phuum.com/impressum.html): Legal operator information per German DDG / MStV - [Datenschutz](https://phuum.com/datenschutz.html): Privacy policy per GDPR / DSGVO ## Journal articles - [Wired vs Wireless Earbuds: The Honest 2026 Comparison](https://phuum.com/journal/wired-vs-wireless-earbuds.html): Pillar piece. Audio quality per dollar, service life, latency, convenience, battery, EMF question. - [USB-C Earbuds and the DAC Inside Them: A Plain Guide](https://phuum.com/journal/usb-c-earbuds-dac-explained.html): Why the DAC matters more than the connector. CS43131, ES9281C, what changes audibly. - [Headset or Earbuds for Video Calls](https://phuum.com/journal/headset-or-earbuds-video-calls.html): Trade-offs by setting. When the boom mic wins. When earbuds look more professional. - [What Are the Best Wired Earbuds in 2026](https://phuum.com/journal/best-wired-earbuds-2026.html): Buying guide by use case. USB-C mixed use, 3.5mm desktop, calls, travel. - [Best Wired Earbuds With a Mic for Calls and Meetings](https://phuum.com/journal/wired-earbuds-with-mic.html): Microphone tiers, USB-C vs 3.5mm, cable build, what to avoid. - [Do You Lose Sound Quality With USB-C Earbuds](https://phuum.com/journal/usb-c-earbuds-sound-quality.html): No. The connector is digital. The DAC decides quality. - [Are Wired Earbuds Safer Than Wireless](https://phuum.com/journal/are-wired-earbuds-safer.html): Factual, non-alarmist. Bluetooth power levels, regulatory limits, what the research shows.