Sunrise Audio is one of the only companies around to still create high-performance ear buds. With the release of the update, the Charm3 and Dragon2 Sunrise once again underline the company's commitment to this form factor that has struggled ever since the arrival of budget in-ears and cheaper, portable on-ear headphones.
Yuin started the quality ear-bud movement, and it seems as though Sunrise is the company that keeps it going. Both the Charm3 and the Dragon2 provide improved sound quality and extended bass response over their predecessors. The build quality has also been improved even though it was fine to begin with, and they now come with a very nice bundle.