USB/TF Music Player with Bluetooth Wireless Connection Key benefits Lets you play music directly from USB drives or TF (microSD) cards. Enables wireless streaming by pairing with Bluetoothenabled devices. Provides flexible listening options: local playback or wireless playback from a phone, tablet, or other BT device. What it does USB input supports playback from USB drives. TF card input supports playback from TF/memory cards. Bluetooth wireless connection supports pairing with BTenabled audio devices for convenient wireless listening. Compatibility Works with USB drives for local music playback. Supports TF (microSD) cards for expanding your music library. Compatible with Bluetoothenabled devices such as smartphones, tablets, and wireless speakers or car systems when using Bluetooth. How it connects Insert a USB drive to access your music files. Insert a TF card to access stored music. Enable Bluetooth on your source device and pair with the music player for wireless playback. Use scenarios In a car: pair with a smartphone or car stereo to stream music via Bluetooth, or play local music from a USB drive or TF card. At home or in a office: connect to a Bluetooth speaker for wireless listening while keeping a local USB/TF library for playback. On the go: load a USB drive or TF card with your playlists and use the device as a portable music source, or pair with a Bluetooth headset or speaker for wireless listening. Design notes Size and material specifications are not provided in the original description. The device focuses on straightforward operation, reliable local playback from USB/TF and wireless streaming via Bluetooth.