What part of these headphones had to be refurbished?
It varies from unit to unit.
Received the Powerbeats 3 in just a few days. Downloaded the Beats Updater application and used it to upgrade the firmware to the latest version. Works great - quality sound, good battery life, and comfortable for the most part. The PB3 came with 3 pairs of rubber ear inserts to allow for a customized inner ear fit. Happy with the purchase!