Bluetooth Cassette Player Wireless music transmission: Transmit the cassette playback to Bluetooth receivers such as speakers or headsets. After power on, the device automatically searches for a Bluetooth receiver; you may need to complete pairing on the receiver. Easy to use and flexible power: Lightweight and compact design. Runs on 2 AA batteries (not included) or USB power, connected to your Bluetooth receivers for flexible operation. Built in Bluetooth transmitter: Sends cassette music to a Bluetooth speaker or headset, allowing you to enjoy the cassette through a Bluetooth audio device. Auto reverse and control options: Five function buttons—play, stop, fast forward, fast reverse, and loop—plus an auto rewind switch. Auto rewind lets you listen to both sides of the tape repeatedly without manually switching sides. Includes a volume adjustment knob and a headphone jack. Use scenarios Home listening with a Bluetooth speaker: Pair with a room speaker to share your cassette music with others without wiring cables. Portable listening on the go: Power from USB or 2 AA batteries to enjoy tapes during travel, in the car (with appropriate setup), or in dorm rooms and outdoors. Private listening: Use the headphone jack for listening or connect to Bluetooth headphones for focused playback.