Welcome to the store! 1. [Bluetooth Portable Cassette Player] Play your tape collection – this retro cassette player lets you journey back in time and relive cherished memories. Tip: Press the "DIR" button to automatically rewind the cassette. If the play button won't press down, this might be due to a stuck key or the (FF/REW/STOP) not being reset. 2. [Bluetooth 5.0] Compared to Bluetooth 4.2, 5.0 offers wider coverage, double the speed, four times the distance, lower power consumption, broader compatibility, and smoother connection. Note: (Old tapes may suffer from demagnetization, resulting in poor sound quality, noise, and hum during playback. If you can't connect to Bluetooth, check if your device is in Bluetooth mode.) 3. [Bluetooth Receiver and Transmitter] Bluetooth Output: Stream music to other Bluetooth receivers like headphones or speakers. Bluetooth Input: Connect directly to your phone via Bluetooth. If you hear a buzzing sound during pairing, this may be due to interference between the tape unit and the Bluetooth signal. Keep the speaker away from the tape unit. 4. [3.5mm Interface and FM Radio Function] Accepts all 3.5mm interface devices such as speakers, headphones, and car stereo speakers. The FM mode receives radio (using 3.5mm headphones as an antenna) and supports automatic FM channel search. The radio function will be a great companion for your life and leisure. 5. [2 Power Ways and Auto Reverse] The wireless cassette player is powered by 2 x AA batteries (not included) or a DC 5V power supply (not included). With auto-reverse, you can choose to listen to music on one side or both sides as desired. The stereo cassette player fits perfectly in your pocket for travel. Item Type: Bluetooth Cassette Player with Headphones Material: ABS Model: TON007B Bluetooth Version: 5.0 Effective Distance: Approx. 10m / 33ft Battery Type: 2 x AA batteries (not included) Package Contents: 1 x Bluetooth Cassette Player 1 x 3.5mm Stereo Headphones 1 x DC Port to USB Cable 1 x Manual