Compact true wireless earbuds from Technics with 6 mm drivers, feed-forward noise cancelling, Bluetooth 5.3 with LDAC and multipoint for up to 3 devices. Technics lists up to 5.5 hours of playback with ANC on (AAC), and 18 hours with the charging case. Available in Black, Rose Gold and Silver.
Technics says the AZ40M2 gives clear, detailed sound from a unique acoustic chamber, a harmoniser and compact 6 mm drivers.
Technics on the EAH-AZ40M2
Why you will love it
Acoustic chamber, harmoniser and LDAC
Technics says the sound comes from its unique acoustic chamber, a harmoniser and compact 6 mm drivers. Technics lists a frequency response of 20 Hz to 40 kHz (LDAC at 96 kHz/990 kbps).
Technics says the earbuds are compatible with LDAC high-res wireless audio, delivered at 96 kHz/24-bit over Bluetooth to a compatible device. Codecs listed are SBC, AAC and LDAC.

Noise cancelling and calls
Technics describes active noise cancelling with a feed-forward microphone, with digital processing to reduce unwanted noise, plus the passive isolation of the earpiece. Natural Ambient mode lets you choose how much background sound you hear, and Attention mode focuses on speech.
Beamforming Technology captures and transmits your voice for clearer calls. Technics notes performance may be affected by external factors.
Multipoint and single-earbud use
Multipoint connects up to 3 devices, such as a computer, smartphone and tablet. Technics notes LDAC playback is not possible with 3 devices connected.
You can use one earbud at a time, or charge one while using the other. Touch sensors can be customised in the Technics Audio Connect app, which Technics says also covers set-up, battery level, EQ sound modes and noise cancelling levels.

Battery and fit
With AAC, Technics lists approx. 5.5 hours of playback with ANC on and 7 hours with ANC off, and approx. 18 hours with ANC on including the charging case. With LDAC the figures are approx. 3.5 hours and 12 hours with ANC on.
A 15 minute quick charge gives approx. 60 minutes of playback (AAC, ANC on). Technics describes a low-profile, balanced design that stays in place on the move, and the earbuds are IPX4 equivalent (earphones only, not the charging case). Four earpiece sizes are supplied.
Is it right for you?
A great fit if you…
- Want small, light true wireless earbuds with noise cancelling
- Use a phone that supports AAC or LDAC
- Switch between a computer, phone and tablet using multipoint
- Like using a single earbud while the other charges
Worth knowing
- Noise cancelling is feed-forward only. The AZ60M2 and AZ80 add feedback microphones
- LDAC playback is not possible with 3 devices connected, and battery life is shorter with LDAC (about 3.5 hours with ANC on)
- The earbuds are IPX4 equivalent. The charging case is not
- Qi wireless charging is not listed for this model. It charges by USB-C
- Three finishes are available: Black, Rose Gold and Silver
Build your system
Technics makes other true wireless earbuds if you want to compare.
- Compare: See the Technics EAH-AZ60M2 earbuds
- Compare: See the Technics EAH-AZ80 earbuds
- Compare: See the Technics EAH-AZ100 earbuds
- More headphones: Browse headphones
Specifications
Audio and wireless
| Driver unit | 6 mm |
|---|---|
| Frequency response | 20 Hz - 40 kHz (LDAC 96 kHz/990 kbps) |
| Microphone | Monaural, MEMS |
| Bluetooth | 5.3; operating distance up to 10 m |
| Profiles | A2DP, AVRCP, HSP, HFP |
| Codecs | SBC, AAC, LDAC |
| Multipoint | Yes, up to 3 devices at a time |
| Multi-pairing | Yes, up to 10 devices |
| Noise cancelling | Feed-forward |
| Water resistance | IPX4 equivalent (earphones only) |
Battery and charging
| Playback (AAC), earbuds | Approx. 5.5 hours ANC on; approx. 7.0 hours ANC off |
|---|---|
| Playback (AAC), with case | Approx. 18 hours ANC on; approx. 24 hours ANC off |
| Playback (LDAC), earbuds | Approx. 3.5 hours ANC on; approx. 4.0 hours ANC off |
| Playback (LDAC), with case | Approx. 12 hours ANC on; approx. 14 hours ANC off |
| Charging time | Earbuds approx. 2.0 hours; charging case by USB approx. 2.5 hours; earbuds with case by USB approx. 3.0 hours |
| Quick charge | 15 minutes, AAC: earbuds approx. 60 minutes (ANC on) |
| Standby time | Approx. 9.5 hours (ANC on); approx. 20 hours (ANC off, auto power off does not work) |
Physical
| Earbud dimensions | Approx. 22 x 26 x 24 mm (W x H x D, medium earpiece) |
|---|---|
| Charging case dimensions | Approx. 68 x 33 x 28 mm |
| Weight | Earbuds approx. 5 g each; charging case approx. 35 g |
| Accessories | USB charging cord approx. 0.2 m (USB-C to USB-C); earpieces XS, S, M, L (M attached) |
Specifications from Technics' Australian EAH-AZ40M2 page, checked November 2026.
What is in the box
- EAH-AZ40M2 earbuds
- Charging case
- Earpieces: XS, S, M and L (M attached)
- USB-C to USB-C charging cord, approx. 0.2 m
Questions people ask
How long does the battery last?
With AAC, Technics lists approx. 5.5 hours with ANC on, or approx. 18 hours including the charging case. With LDAC it lists approx. 3.5 hours, or approx. 12 hours with the case, with ANC on.
Can I charge the case wirelessly?
Technics lists USB charging for this model. Qi wireless charging is not listed.
How many devices can I connect?
Multipoint connects up to 3 devices at a time. LDAC playback is not possible with 3 devices.
Which codecs are supported?
SBC, AAC and LDAC, over Bluetooth 5.3.
Are they water resistant?
The earbuds are IPX4 equivalent. The charging case is not.
Can I use one earbud on its own?
Yes. Technics says you can keep one ear open, or charge one earbud while using the other.