Three different driver technologies share each Astrid earpiece, an 8.3mm dynamic driver low down, a 6mm planar driver through the middle, and a balanced armature up top. Noble Audio has refined that hybrid layout for years in its wired in-ear monitors, and Astrid sells it in a true wireless earbud for $539, with active noise cancellation on board.
Most earbuds run one driver a side. Astrid runs three.
Price: $539.00
Where to buy: Noble Audio
Hybrid layouts are Noble’s home ground, and the company got there long before wireless. Its universal-fit and custom monitors have mixed dynamic drivers, balanced armatures, and stranger combinations for years, chasing a house sound built on separation. Astrid is that same recipe, shrunk into a shell with a battery and a Bluetooth radio inside. Every choice on it traces back to that catalog, from the driver mix to the app-driven tuning.
Three drivers, three jobs
The dynamic driver moves the air, and its polyurethane diaphragm wears an aluminum-magnesium alloy dome for stiffness. Planar drivers bring speed and fine detail through the midrange, where most of a vocal lives. The balanced armature adds precision at the top, the job Noble’s multi-driver monitors built the company’s name on.
The spec sheet stays modest: 20Hz to 20kHz response, 29 ohms of impedance, 106dB sensitivity, and a Qualcomm QCC3091 chip running Bluetooth 6.0.
LDAC carries high-resolution audio from compatible Android phones and players. aptX Adaptive does similar work on the Qualcomm side of the fence. iPhone owners get AAC, the standard Apple ceiling, and SBC fills every remaining gap in the stack.
A hearing profile stored on the buds
Audiodo Personal Sound checks each ear on its own during setup. A short assessment in the Noble app plays test tones and builds a hearing profile for the left ear. A separate profile takes shape for the right ear, since nobody hears identically on both sides. Both profiles live on the earbuds themselves, so the tuning travels from phone to laptop without a rebuild. Swap phones and the profile comes along, since it rides in the buds themselves.
Audiodo Equalizer sits beside it for taste. Bass, mids, and treble each get a control, so a listener can soften a hot top end or lift the low shelf without disturbing the hearing profile underneath.
Audiodo’s software already runs across the Noble range. Rex5 owners know it, Amadeus owners know it, and the Prestige Encore plus the Artemis over-ear flagship carry versions of it too. Astrid pairs both tools, Personal Sound and the Equalizer, with its three-driver hybrid.
Frost on glass fiber
Astrid means divinely beautiful, and the design leans hard into the name. Fine silver lines branch across the glossy black earbuds like frost crawling over a windowpane on a cold January night. The charging case wears the same pattern, so the whole set looks like one designed object instead of a generic case with two buds dropped inside it.
The pattern is no print. It lives inside the glass fiber itself, fine as frost.
Faceplates are glass fiber over ABS housings, finished with a sprayed coating that gives the black its gloss. An emblem sits centered on each faceplate, the full Noble logo runs across the case lid, and silicone tips in four sizes, XS through L, handle the fit. The case pattern wraps the lid and the body in one continuous run.
Touch controls run playback and calls, and a voice assistant stays one tap away. IPX4 splash resistance shrugs off rain and workouts. The finish looks delicate, and none of it needs gentle handling.
Eleven hours and two connections
Battery life runs up to 11 hours from a single charge. The case lifts the total to up to 40 hours depending on settings, and each earbud carries a 65mAh cell against the case’s 500mAh. USB-C handles the wired top-ups, and a wireless charging pad works too, so the case can live on the same pad as a phone overnight. The wireless option also removes the last cable from the nightly routine.
Bluetooth 6.0 holds a phone and a laptop at once, both live.
Active noise cancellation cuts the commute down at both ends of the day. Transparency mode lets the platform announcements back in when the train doors open. Calls get dedicated help as well, since microphone noise and wind reduction clean up the voice the other side hears. That cleanup runs on every call, not just the quiet ones.
| Drivers per earbud | 8.3mm dynamic, 6mm planar, balanced armature |
| Dynamic driver | PU diaphragm, aluminum-magnesium alloy dome |
| Frequency response | 20Hz to 20kHz |
| Impedance | 29 ohms at 1kHz |
| Sensitivity | 106dB SPL/mW at 1kHz |
| Chipset | Qualcomm QCC3091 |
| Bluetooth | 6.0, multipoint for two devices |
| Codecs | LDAC, aptX Adaptive, aptX, AAC, SBC |
| Noise control | Active noise cancellation, transparency mode |
| Battery | Up to 11 hours per charge, up to 40 hours with the case |
| Charging | USB-C and wireless |
| Water resistance | IPX4 |
| Ear tips | Silicone, XS, S, M, L |
Where Astrid sits
The ladder around it runs tight. Osprey opens the range at $199, Amadeus sits at $320, Rex5 holds $449, and the Prestige Encore tops it at $699.
We covered the FoKus Amadeus first listen in September, when the personal tuning did the persuading at $320. Astrid pushes the same idea further up the line. More driver hardware goes into each ear, the tuning stays personal, and the finish gets louder. The hardware argument gets stronger at this rung, and the asking price climbs with it.
At $539, Astrid asks buyers to pay for hardware variety and personal tuning instead of a longer feature list. Listeners who already like Noble’s hybrid approach get the fullest version of it here. Nobody will mistake the finish for a pair of AirPods, either.
Price: $539.00
Where to buy: Noble Audio
Sales run through Noble Audio and selected retailers now. The tuning stays the open question, and it needs ears and time before any verdict: that listening test comes next.
