HK1 PLUS Android 16GB ROM Dual-frequency WiFi TV Box AU PlugKey Features...Supports MP3, AAC, WMA, RM, FLAC, Ogg and programmable with 7.1/5.1 down-mixing.Built-in serial digital audio SPDIF/IEC958 input/output and PCM input/output.built-in TDM/PCM/I2S ports with TDM/PCM mode up to 384kHz x32bits x 8ch or 96kHz x 32bits x 32ch and I2S mode up to 384kHz x 32bits x 8ch.Digital microphone PDM input w..