Builtin Bluetooth receiver and FM radio provide wireless music playback and live radio without extra devices. MP3 playback from TF card or USB flash drive for convenient local listening. AUX input to connect PC, phone, or CD player for wired audio options. Independent adjustment of treble, bass, and master volume for precise sound tuning. Broad compatibility across Bluetooth streaming, TF/USB MP3 files, and AUX sources. Use scenarios Living room or bedroom setup: pair a smartphone or tablet via Bluetooth for wireless listening; insert a TF card or USB flash drive to play MP3s; optionally connect a TV or other AUXenabled device to enjoy enhanced sound and easy source switching. Desktop or office environment: connect to a computer or laptop through the AUX input for improved audio quality; stream music or podcasts via Bluetooth from a mobile device; tailor the sound with separate treble, bass, and master volume controls for clarity. Small gatherings or kitchen/tea area: use Bluetooth to play background music from a phone or tablet; switch to FM radio for live programs or news; adjust EQ to maintain comfortable ambience throughout the room.