5 model

Free

HD681 Earpad quick release

Printables

Free

Superlux hd681 / AKG k240 detachable cable mod

Printables

Free

Superlux HD681 Headband Replacement

Printables

Free

Audio jack cable protector for Superlux-HD681-EVO Headphones

Printables

Free

Superlux HD-681 (AKG K240 Clone) - Flexible Headband Replacement

Printables