Bluetooth headset, FIHI sound quality, Bluetooth music control, comes with local memory audio playback, daily activity monitoring step, dynamic heart rate / all-day heart rate monitoring, sports details / analysis, GPS track
Fix the use of help in the "music" wrong write heart rate bug
9Apps 4.9
![국세청 홈택스 [손택스] on 9Apps](https://go.getnew.app/sg/res/jpg/f7/df/69cc2f90120ec331db2630e0f5b6-6dh.jpg?x-oss-process=style/jmq200)
