reTONE F/G Brings FLAC Playback to Old Android Phones

Iida Piano exhibited reTONE F/G, a lightweight version of its reTONE music app built for Android 2.2 and 2.3, at the Autumn Headphone Festival 2026 in Tokyo on November 7, according to av.watch.impress.co.jp.

The build focuses on listing and playing songs and does not carry every feature of the currently released reTONE, including USB DAC output. It can read and play FLAC files, which those older Android versions cannot handle by default.

At the show, the app was demonstrated running on a REGZA Phone T-01D and a MEDIAS N-04C. Iida Piano plans to release reTONE F/G after the event.

Other products on the show floor

Valphonics showed its new Mascara Pure and Pocketier earphones in Japan for the first time, expected to be priced at 46,200 yen and 29,700 yen respectively. ABYSS displayed the open-back planar magnetic headphones Diana TC Signature and JOAL, planned at 946,000 yen and 374,000 yen.

AUDMA presented the Maestro HPA1 headphone amplifier and the portable Brioso PHPA1 amplifier for the first time in the Kanto region, with release dates and prices still undecided.