diff --git a/1209/4C05/index.md b/1209/4C05/index.md
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+---
+layout: pid
+title: Lossless OS player (USB drive)
+owner: lossless
+license: Apache-2.0
+site: https://github.com/bobbydotdesign/lossless-os
+source: https://github.com/bobbydotdesign/lossless-os
+---
+A portable music player running Lossless OS, as a USB mass storage device
+(the player's card, for copying music). Lossless OS is open-source firmware
+on Zephyr for existing players; the first is the HiFi Walker H2 (Ingenic
+X1000). Its USB device is our own (platform/h2/h2_usb.c, usb_msc.c).
diff --git a/1209/4C06/index.md b/1209/4C06/index.md
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+---
+layout: pid
+title: Lossless OS player (USB DAC)
+owner: lossless
+license: Apache-2.0
+site: https://github.com/bobbydotdesign/lossless-os
+source: https://github.com/bobbydotdesign/lossless-os
+---
+A portable music player running Lossless OS, as a USB Audio Class 2 sound
+card (asynchronous, 44.1 to 384 kHz, 16 / 24 / 32-bit, bit-perfect).
+Lossless OS is open-source firmware on Zephyr for existing players; the
+first is the HiFi Walker H2 (Ingenic X1000, ES9018K2M DAC). Its USB device
+is our own (platform/h2/usb_dac.c).
diff --git a/org/lossless/index.md b/org/lossless/index.md
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+---
+layout: org
+title: Lossless
+site: https://github.com/bobbydotdesign/lossless-os
+---
+Lossless makes Lossless OS, an open-source (Apache-2.0) operating system
+for portable music players: bit-perfect playback, its own Bluetooth stack,
+and the player as a USB drive or a USB DAC.