Bluetooth chip supports Bluetooth 5.1+BR+EDR+BLE protocols and dual SD card host controller. Support MP2, MP3, WMA, APE, FLAC,AAC, MP4, M4A, WAV, AIF, AIFC audio formats. Highly integrated, cost-effective, low-power Bluetooth SoC. Common application areas include smart speakers, smart speaker lights, Bluetooth karaoke boxes, and clock speakers.