Panasonic gave us a sneak peek at the Technics EAH-AZ100 wireless noise cancelling earbuds before they arrived at CES 2025, which was detailed in Chris Boylan’s deep-dive review. We were the first to confirm these aren’t just another “me too” TWS release. The design is smart, the tuning is classic Technics, and its performance is class-leading in a brutally competitive price bracket.
If you missed Chris’s review, here’s the short version: the AZ100 deliver excellent ANC, a clean and controlled sound signature, strong call quality, and a feature set that makes sense instead of padding a spec sheet. Before we get into what Auracast adds to the mix, here’s a quick refresher on the core strengths that made the AZ100 worth paying attention to in the first place.
Key Features
- Magnetic Fluid Drivers: This supports low distortion, accurate bass, and clear highs.
- Adaptive Noise Cancelling: This technology adjusts in real-time to block ambient noise and maintain optimal ANC.
- Voice Focus AI: This provides advanced noise reduction for both speaking and listening.
- Spatial Audio: This feature provides an immersive sound field that is optimized for Dolby Atmos and Dolby Head Tracking.
- Bluetooth Multipoint: This supports connection to 3 devices with seamless switching.
In addition, Technics has decided to add another great feature to the EAH-AZ100 that greatly expands it usability – Auracast.
What is Auracast?
Auracast is a Bluetooth broadcast audio technology that lets a single source—your phone, laptop, TV, or transmitter—send audio to an unlimited number of compatible receivers with no traditional pairing. That includes wireless headphones, earbuds like the Technics EAH-AZ100, speakers, and even modern hearing aids. It can broadcast phone calls, music, show audio, announcements, and more, all while using Bluetooth LE’s low-power, low-latency foundation. Here’s a deeper look in the video below:
The addition of Auracast expands the EAH-AZ100’s feature set, giving these earbuds another practical capability without altering their core performance or design.
Technics EAH-AZ100 Specifcations
| Technics Model | EAH–AZ100 |
| Product Type | TWS (True Wireless Stereo) Earbuds |
| MSRP | $299 |
| Wearing Type | In-Ear |
| Driver Unit | 10 mm (3/8 in) |
| Frequency Response | 20 Hz – 40 kHz (LDAC 96 kHz/990 kbps) |
| Dolby Atmos and Spatial Audio | Yes/Yes |
| Dolby Head Tracking | Yes |
| Noise Cancelling | Full Adaptive Digital Hybrid |
| Water Resistance (IPX Rating) | IPX4 Equivalent (Earbuds only) |
| Mic | Monaural, MEMS Mic |
| Bluetooth Version | 5.3 |
| Bluetooth Supported Profiles | A2DP, AVRCP, HSP, HFP, TMAP, PBP |
| Bluetooth Codecs | SBC, AAC, LDAC, LC3 |
| Bluetooth Auracast (New) | Yes |
| Operating Distance | Up to 10 m (33 ft) |
| Bluetooth Multi-point | Connect up to 3 devices at a time |
| Bluetooth Multi-pairing | Connect up to 10 devices |
| Charging Time | Charging case / USB Approx. 2.5 hours Charging case / Qi *With certified Qi charger Approx. 3.5 hours Earbuds with Charging case / USB Approx. 3.0 hours Earbuds with Charging case / Qi *With certified Qi charger Approx. 4.0 hours |
| Playback Time | Earbuds: Approx. 10.0 hours (NC ON) Approx. 12.0 hours (NC OFF) Earbuds with Charging case: Approx. 28 hours (NC ON) Approx. 29 hours (NC OFF) Earbuds: Approx. 7.0 hours (NC ON) Approx. 8.0 hours (NC OFF) Earbuds with charging case: Approx. 18 hours (NC ON) Approx. 19 hours (NC OFF) |
| Earbud Standby Time | Approx. 8 hours (NC ON) Approx. 15 hours (NC OFF, Auto power off does not work) |
| Colors | Black, Silver, Champagne, Blue |
| Weight | Earbuds (one side only: L and R are the same) Approx. 5.9 g (0.21 oz) Charging case Approx. 42 g (1.5 oz) |
| Supplied Accessories | USB charging cord: Approx. 0.2 m (0.66 ft) Input Plug: USB Type-C Shape Output Plug: USB Type-C Shape) Earpieces set: XS, S, M, ML, L (M attached) |
The Bottom Line
If you haven’t spent time with the Technics EAH-AZ100 yet, they’re already one of the best picks in the true wireless market: effective adaptive/manual ANC, strong battery life, solid call quality, and a fit you can actually wear for hours instead of minutes. The new Auracast support doesn’t change the sound or the ergonomics—it simply adds a genuinely useful capability for real-world situations.
For travelers, classrooms, fitness studios, offices, or anyone who wants easy audio sharing without Bluetooth pairing gymnastics, Auracast makes the AZ100 more versatile without bumping the price. This isn’t a cosmetic refresh or a marketing ploy; it’s a functional upgrade that future-proofs a pair of earbuds that were already easy to recommend.
Where to buy:
Available in four colors: black, silver, champagne, or blue.
Related Reading:
- Review: Bose QuietComfort Ultra Earbuds Gen 2 — Still the Best in Noise Cancelling With Bluetooth 5.4 and LE Audio?
- Noble FoKus Amadeus Review: Custom-Grade Wireless Earbuds at a Factory Price
- Noble Audio Launches FoKus Prestige Encore: Luxury Wireless Earbuds With High-End Design and Sound
- JBL Tour PRO 3 Wireless Earbuds: More Features Than AirPods With Smart Charging Case
