TECHNICS / EAH-AZ70W-K

The EAH-AZ70W is a [LF] completely wireless earphone that incorporates Technics') acoustic technology to deliver the original dynamism and rich spatiality of music.

＜Features＞
■Technics' acoustic technology realizes the original dynamism and rich spatiality of music
・A completely wireless earphone born from the acoustic technology cultivated in the development of Technics' Hi-Fi audio equipment and top-of-the-line earphones EAH-TZ700. The excellent acoustic structure design, including a 10mm diameter dynamic driver equipped with a graphene-coated PEEK (※1) diaphragm and an acoustic control chamber, realizes the original dynamism and rich spatiality of music.
(※1) Abbreviation for polyether ether ketone, a material with excellent strength and internal loss characteristics.

■10mm dynamic driver with graphene-coated PEEK diaphragm
・The EAH-AZ70W is equipped with a large-diameter 10mm dynamic driver as a completely wireless earphone. It realizes rich bass, a wide sound field, and a spacious three-dimensional sound. In addition to using PEEK material, the diaphragm is coated with graphene to increase strength and suppress unnecessary vibration of the diaphragm itself. It reproduces vocals with a high-frequency extension, clarity, and gloss.

■Acoustic control chamber that precisely controls air flow
・At the rear of the driver, an acoustic control chamber that precisely controls the air flow in front of and behind the driver, which was also adopted in the EAH-TZ700, is placed. The acoustic structure optimizes the air flow, allowing the driver to demonstrate its wide-band reproduction capabilities from low to high frequencies.

■Dual hybrid noise canceling
・Dual hybrid noise canceling is installed, achieving high-performance noise canceling performance that allows you to enjoy music even in noisy places such as airplanes and trains. This method combines ""digital control"" and ""analog control"" as a method of noise canceling processing in addition to ""hybrid noise canceling"" which uses microphones placed on the outside and inside of the earphones.

■Feedforward method x digital control
・The feedforward method uses a microphone placed on the outside of the earphones to reduce noise outside the earphones, and uses digital control that allows precise calculation processing using high-order filters to significantly reduce noise.

■Feedback method x analog control
・The feedback method uses a microphone placed inside the earphones to reduce noise inside the ear, and uses analog control. The feedback method must eliminate noise in the ear, so if the noise canceling process is delayed, the accuracy will decrease. By adopting analog control with less processing delay, the accuracy is improved.

■Newly developed touch sensor antenna
・The touch sensor antenna, which shares the touch sensor and Bluetooth antenna, achieves a compact size, and by making the touch sensor part and the board part into an antenna, it secures the surface area of ​​the antenna and stabilizes connectivity.

■Independent left and right reception method for earphones
・The left and right earphones receive Bluetooth signals simultaneously, achieving stable wireless connectivity. Compared to the relay transmission method, which receives the signal once on one earphone and then transmits it to the other, it is more stable and the sound is less likely to be interrupted even in crowded places. It also reduces the gap between the video and audio when watching videos.

■Beamforming technology that distinguishes the voice of the speaker from noise and makes it clear
・Equipped with beamforming technology that distinguishes the voice of the speaker from other sounds and reduces noise. By using two call microphones, the voice of the speaker is made clear.

■High-performance MEMS microphone (※2)
The microphone is equipped with two noise-canceling microphones and one dedicated call microphone on each side (total of six on the left and right). All of them use high-performance MEMS microphones (※2).

(※2) MEMS is an abbreviation for ""Micro Electro Mechanical Systems"" and is a microphone manufactured using a semiconductor process. Compared to condenser microphones, it is smaller and has less variation between parts such as frequency characteristics, allowing for more precise sound collection.

■Labyrinth structure that reduces wind noise
・A ""labyrinth structure"" is adopted that refracts the air passage so that the wind does not directly hit the microphone, making it less susceptible to wind noise when transmitting.

■High-quality and fine design
・The earphones adopt a small circular design. The ornament part is spun to symbolize the fine design of Technics headphones, achieving a high-quality appearance. In addition, the charging case has a robust appearance that makes use of aluminum material, and has a hairline on the top surface and an engraved logo that symbolize Technics Hi-Fi audio. The rounded shape fits comfortably in your hand and is easy to carry.

■Easy to use with the ""Technics Audio Connect"" (※3) app
・Compatible with the smartphone app ""Technics Audio Connect"" (※3). Enjoy a variety of functions, including an equalizer function that allows you to customize the sound quality to your liking, and adjustments to the effectiveness of noise canceling and ambient sound capture. You can also check the battery level of the left and right earphones, and if you lose your earphones, you can use the ""Find Headphones"" function to find the last location they were connected to on a map app.

＜Specifications＞
■Type: Closed type
■Unit used: Diameter 10mm
■Weight Earphones approx. 7g x 2 (LR equivalent), Charging case approx. 65g
■Power supply: DC 5V, 500mA (Built-in battery (earphones and charging case): 3.7V)
■Waterproof performance: Equivalent to IPX4
■Bluetooth version: Ver.5.0
■Transmission output: Class1 (8mW)
■Communication method: 2.4 GHz band FHSS
■Supported profiles: A2DP, AVRCP, HSP, HFP
■Supported codecs: SBC, AAC
■Supported content protection: SCMS-T method
■Playback frequency band (A2DP): 20Hz to 20,000Hz
■Communication distance: Up to approx. 10m
■Playback time: Earphones alone approx. 6.5 hours (noise canceling ON, AAC), including charging case approx. 19.5 hours (noise canceling ON, AAC)
■Charging time: (25℃) Earphones: about 2 hours
■Charging case: about 2.5 hours, earphones + charging case (simultaneous charging): about 4 hours, quick charging time and usage time 15 minutes of charging can be used for about 70 minutes (noise canceling ON, AAC)
■Charging terminal: DC 5V, 500mA (USB Type-C shape)
■Microphone: Mono
■USB charging cable: about 0.5m (input: USB A shape, output: Type-C shape)
■Remote control included: Yes
■Accessories: Earpieces (S/M/L/XL sizes), USB charging cable (0.5m, input: USB A shape, output: Type-C shape)
■About 22.5 hours of playback possible
・Up to about 22.5 hours of playback (noise canceling OFF, AAC) is possible by charging with the charging case. You can play music with peace of mind even when you are out for a long time.