Support audio formats: MP3/WMA/WAV/OGG/AAC/ACELP/APE/FLAC/(It's not compatible with audiobooks/Audible/itunes), Bluetooth support audio format: APE/MP3/FLAC/WMA/WAV. ❤️ Wireless Bluetooth 4.2 Technology : This Bluetooth MP3 Player Adopts Bluetooth 4.2 technology,more stable and faster connection, excellent for connecting to the wireless headset, TWS earbuds, or Bluetooth speaker without having to worry about wires to free your hands while running, workout or fitness.