1. Introduction
The Tonivent Portable Cassette to MP3 Player is a versatile device designed to bring your cherished analog cassette tapes into the digital age. This unit functions as a standalone cassette player, an audio recorder with a built-in microphone, and a converter for transforming cassette audio into digital MP3 or WAV files. Its compact design and multiple power options offer flexibility for use at home or on the go, allowing you to preserve and enjoy your audio memories.

2. Package Contents
Please check the package carefully to ensure all items are present:
- 1 x Tonivent Cassette Player
- 1 x Software CD (for MP3/WAV conversion)
- 1 x USB-C Cable
- 1 x Headphone
- 1 x User Manual (English)
- 1 x Speed Control Screwdriver

3. Product Overview
Familiarize yourself with the various parts and controls of your Tonivent Cassette Player:

- Place tape switch (Push down): Opens the cassette compartment.
- Type-C Data cable connector: For USB power supply and data transfer to a computer.
- 3.5mm Earphone jack connector: For connecting headphones or external audio output.
- Volume adjustment knob: Controls the playback volume.
- Play tape button: Starts cassette playback.
- Stop Playing tape button: Stops cassette playback.
- Tape fast forward and rewind buttons: For quick navigation through the tape.
- Record press to start recording button: Initiates audio recording onto the cassette.
- Play Revolutions Per minute: Indicates the tape speed (usually on the bottom or side).
4. Setup
4.1 Powering the Device
Your Tonivent Cassette Player offers two power options:
- Battery Power: Insert 2 AA batteries (not included) into the battery compartment. Ensure correct polarity.
- USB Power: Connect the included USB-C cable to the Type-C Data cable connector on the player and to a USB 5V DC power source (e.g., a computer USB port or a USB wall adapter).
4.2 Loading a Cassette Tape
- Push down the 'Place tape switch' to open the cassette compartment.
- Carefully insert your cassette tape with the open side facing the playback head.
- Close the cassette compartment firmly until it clicks into place.

5. Operating Instructions
5.1 Playing Cassettes
- Ensure a cassette tape is loaded and the device is powered on.
- Connect the included headphones (or your own 3.5mm headphones) to the '3.5mm Earphone jack connector'.
- Press the 'Play tape' button to begin playback.
- Adjust the volume using the 'Volume adjustment knob' to your desired level.
- Use the 'Tape fast forward' and 'rewind' buttons to navigate through the tape.
- To stop playback, press the 'Stop Playing tape' button.
5.2 Recording Audio
The Tonivent Cassette Player features a built-in microphone for direct audio recording onto a blank cassette tape. You can record your voice or ambient sounds.

Attention: Do not use cassette tapes that already contain audio for recording, as this action will erase the original content on the tape.
- Load a blank cassette tape into the player.
- Press the 'Record press to start recording' button. The device will automatically begin recording audio from its built-in microphone.
- To stop recording, press the 'Stop Playing tape' button.
- You can instantly playback the recorded audio by pressing the 'Play tape' button.
5.3 Converting Cassettes to MP3/WAV
To convert your cassette tapes to digital MP3 or WAV files, you will need a computer and the included software CD.
- Install the conversion software from the included CD onto your computer. Ensure your computer meets the minimum system requirements (USB 2.0 interface, Pentium 4 CPU or above, 512MB memory or above, 1GB hard drive capacity).
- Connect the Tonivent Cassette Player to your computer using the USB-C cable.
- Load the cassette tape you wish to convert into the player.
- Open the installed conversion software on your computer.
- Follow the on-screen instructions within the software to start the recording and conversion process. The software will guide you through capturing the audio and saving it as an MP3 or WAV file.

6. Maintenance
- Cleaning: Use a soft, dry cloth to clean the exterior of the player. Do not use liquid cleaners or solvents. For the tape heads and pinch rollers, use a specialized cassette head cleaning kit periodically to ensure optimal audio quality.
- Storage: Store the player in a cool, dry place away from direct sunlight, extreme temperatures, and high humidity.
- Batteries: If the device will not be used for an extended period, remove the AA batteries to prevent leakage.
- Speed Adjustment: A speed control screwdriver is included. This is for fine-tuning the tape playback speed if necessary. Adjustments should be made carefully and only if you notice consistent speed inaccuracies.
7. Troubleshooting
- No Power / Device Not Turning On:
- Check if AA batteries are inserted correctly and are not depleted.
- If using USB power, ensure the USB-C cable is securely connected to both the player and a working power source.
- Try a different USB port or power adapter.
- No Sound / Poor Sound Quality:
- Ensure headphones are fully plugged into the 3.5mm jack.
- Adjust the 'Volume adjustment knob'.
- Check if the cassette tape is inserted correctly and not damaged.
- Clean the tape heads and pinch rollers using a cassette head cleaning kit.
- If converting to digital, ensure the software settings are correct and audio levels are properly adjusted.
- Tape Not Playing / Stuck:
- Ensure the cassette compartment is fully closed.
- Check if the 'Play tape' button is fully engaged.
- Inspect the tape for any physical damage or tangles.
- Recording Issues:
- Ensure a blank cassette tape is used for recording.
- Verify that the 'Record press to start recording' button is pressed.
- Ensure the microphone is not obstructed.
8. Specifications
| Feature | Detail |
|---|---|
| Rated Power | 3W |
| Headphone Impedance | 32 Ω |
| Earphone Output Power | 6.3KHZ, 30MV-80MV |
| Belt Speed | 2980HZ-3080HZ |
| Wow & Flutter | 3KHZ, 0.4% |
| Recording Information | MP3, 128Kbps |
| Audio Input | Cassette player/recording microphone |
| Audio Output | Earphone (3.5mm stereo jack) |
| System Requirements (for conversion) | USB 2.0 interface, Pentium 4 CPU or above, 512MB memory or above, 1GB hard drive capacity, CD installable |
| Input Voltage | DC 5V |
| Power Supply | 2 * AA Battery (Not included) or Type-C USB Cable |
| Product Material | ABS shell |
| Product Color Options | Black, Orange |
| Item Size | 11.6 x 9 x 3.3 cm (4.6 x 3.5 x 1.3 inch) |
| Item Weight | 179 g (6.3 oz) |

9. User Tips
- For best audio quality during playback or conversion, ensure your cassette tapes are clean and in good condition.
- When converting to digital, monitor the audio levels in the software to prevent clipping or distortion.
- Experiment with different recording environments when using the built-in microphone to find the best sound capture.
- Always use fresh batteries or a stable USB power source for consistent performance.
10. Warranty and Support
For warranty information and technical support, please refer to the documentation provided with your purchase or contact the retailer. Keep your proof of purchase for any warranty claims.