Allinone playback and navigation control for portable audio devices, letting you manage songs, folders, and FM radio without touching the main device. Flexible control mappings for clear, reliable operation Repeat (Single Loop): Press to enable Single Loop, press again to cancel Single Loop. Playback and folder navigation: Short press selects a song Long press increases the volume Doubleclick switches to a folder Pause and radio: Short press toggles between pause and play Long press switches to an FM radio automatic station Volume key operations: Short press selects the previous song Long press decreases the volume Doubleclick switches to the previous folder Clear benefits Quick, distraction control for playback, folder navigation, and radio Versatile input patterns enable precise operations with minimal effort Enhances listening sessions by enabling easy repeat, skip, and browse without reaching for the main device Applications and scenarios At home or in the office: use the folder switch and song selection to browse your library while keeping focus on tasks. During workouts or commuting: adjust volume with long presses and skip tracks with short presses for seamless listening. In the car or on the go: toggle pause/play with a quick press, and switch to FM radio with a longer press for variety without distraction.