AVIOT has collaborated with Ascendance of a Bookworm — the hit series published by TO Books (headquartered in Shibuya, Tokyo; represented by Takeichi Honda) — on a set of original-design true wireless earphones. Pre-orders opened at 12:00 PM on Thursday, August 20.
In addition to voice guidance that announces power on/off and device connection status, the earphones also include random voice lines drawn from the series and original recordings, for a specially designed listening experience.
Product Features
Special Design and Package
Design
The earphones and charging case share a color scheme inspired by Rozemyne's hair, with a gold emblem representing Rozemyne's workshop that captures the atmosphere and refined feel of the Ascendance of a Bookworm world.
Package
The package uses shimmering specialty paper with a gold foil-stamped emblem for an upscale look, and the inside of the package features illustrations of Rozemyne and Ferdinand.
Product photos and specifications shown on this product page are from development and are subject to change without notice.
Special Voice Lines
Newly recorded dialogue between Rozemyne (voiced by Yuka Iguchi) and Ferdinand (voiced by Sho Hayami) is included. Sample voice clips are available on the special site — check them out.
Ferdinand voice line list
Rozemyne voice line list
Rozemyne x Ferdinand dialogue voice line list
Base Model: TE-Q3R
The base model is the TE-Q3R, the latest model in the Q Series, which has shipped approximately 360,000 units*1 in total. It features an industry-smallest-class*2 compact design along with adaptive noise canceling that automatically optimizes noise suppression to match the surrounding environment.
The earphones also offer up to 11.5 hours of playback on their own and up to 42 hours combined with the charging case, wireless charging, and ear tips made from skin-friendly medical-grade silicone*3. On top of these core features, they support LDAC™, which can transmit roughly three times the data of a music CD, delivering high-resolution audio quality even wirelessly. It's a high-spec model that brings design, usability, and sound quality together at a high level.
*1 As of the end of December 2025
*2 Among true wireless earphones with noise canceling and wireless charging support, as of September 2025, according to research by Pressed Japan
*3 This does not guarantee that no one will have an allergic reaction
See It in Person: POP-UP STORE Opens August 22
The earphones will be on display at the Ascendance of a Bookworm SUMMER POP-UP STORE at Shibuya Sakura Stage, running from Saturday, August 22. It's a chance to see them in person before anyone else, so everyone is welcome to stop by.
Dates: August 22 (Sat) – August 30 (Sun), 2026
Hours: 10:00 AM – 9:00 PM
Location: TO POP-UP, Shibuya Sakura Stage store
Shibuya Sakura Stage, SHIBUYA SIDE, 3F, next to the escalator
TV Anime Information
The second cour is currently airing!
Official TV anime website
Original Work Information
Original work special site
