2012: YHZC was established to develop wired Bluetooth earphone, sports earphone, with 60 workers;
2015: 5 SMT lines established; Started to develop wireless mono earbud, true wireless earbuds, based on Airoha & BES platform with 120 workers;
2016: Added a new product line of bone conduction headphone;
2018: Started to develop True wireless earbuds based on Qualcomm and local chipsets;
2019: Started to develop ANC true wireless earbuds;
2020: Separate production of True wireless earbuds and Bone conduction headphones (under Dongguan Yiyin Technology co., limited), with total 400 workers and 10 SMT lines.
2021: Started to develop TWS with amplifier, aiming at elderly market.
To be continued..