I2S output (BCK, LRCK, DATA); SPDIF output (DATA) Function control A single KEYCOM button provides control for PLAY, VOL+, VOL, PREV, NEXT. The control input is compatible with 3.3V logic levels. Button functions PLAY: short press to play/pause. Repair: long press 2.5 seconds. Clear pairing list: long press 5 seconds. Key benefits and features Provides digital audio outputs to compatible DACs or receivers via I2S (BCK, LRCK, DATA) and SPDIF (DATA). Simple, consolidated control with a single KEYCOM button for playback and navigation functions. 3.3V logic level compatibility for reliable operation with common host devices. Designed to streamline setup and daily use by enabling easy pairing management and playback control from a single interface. Use scenarios Home audio with external DAC: connect to a DAC via I2S to route digital audio, while using the KEYCOM button to play/pause and navigate tracks from a connected source. Bluetooth speaker or system setup: manage pairing with the device by using the repair and clear pairing list functions, without needing to access the host device. TV or media center integration: route audio through SPDIF to a compatible receiver while controlling playback and basic navigation through the single KEYCOM button. Compatibility and performance notes Outputs are I2S (BCK, LRCK, DATA) and SPDIF (DATA), intended for use with devices that accept these digital audio interfaces. Button actions provide straightforward control for play/pause and pairing management.