WIITHINK WTB-777 Portable Cassette Player Boombox User Manual

1. Introduction

Thank you for purchasing the WIITHINK WTB-777 Portable Cassette Player Boombox. This device combines classic audio playback with modern connectivity, offering AM/FM radio, cassette playback and recording, Bluetooth streaming, and USB MP3 playback. This manual provides detailed instructions for setup, operation, and maintenance to ensure optimal performance and longevity of your device.

Please read this manual thoroughly before using the product and retain it for future reference.

WIITHINK WTB-777 Portable Cassette Player Boombox, front view with cassette door open and antenna extended.

Image 1.1: Front view of the WIITHINK WTB-777 Portable Cassette Player Boombox.

2. What's in the Box

Verify that all items are present upon unpacking:

WTB-777 Cassette Player Boombox
Power Cord
User Manual (this document)

3. Product Overview and Features

The WTB-777 boombox offers a range of audio functionalities:

Cassette Player & Recorder: Play your favorite cassette tapes and record audio directly to a blank tape.
AM/FM Radio: Tune into local radio stations with clear reception.
Bluetooth Connectivity: Wirelessly stream audio from your smartphone, tablet, or other Bluetooth-enabled devices.
USB Player: Play MP3 files from a USB flash drive.
MP3 Conversion: Convert radio broadcasts or cassette tapes to MP3 files directly onto a USB drive.
Earphone Jack: For private listening.
Dual Power Options: Operates on AC power or DC batteries for portability.

Image showing the WTB-777 boombox with a list of its features: Cassette Player, Cassette Recorder, USB Player, AM/FM Radio, Bluetooth, Headphone Jack.

Image 3.1: Key features of the WTB-777 Portable Retro Cassette Player Recorder.

3.1. Controls and Ports

Familiarize yourself with the various controls and connection points on your boombox:

Power Button: Turns the unit on/off.
Volume Control: Adjusts audio output level.
Function Selector: Switches between Tape, Radio, Bluetooth, and USB modes.
Radio Tuner Dial: Selects AM/FM frequencies.
Cassette Controls: Play, Stop, Fast Forward, Rewind, Record, Eject.
USB Port: For connecting USB flash drives.
Earphone Jack: 3.5mm stereo output for headphones.
AC Power Input: For connecting the power cord.
Battery Compartment: Located on the bottom for DC power.
Telescopic Antenna: For improved FM radio reception.

4. Setup

4.1. Powering the Unit

The WTB-777 can be powered by either AC electricity or DC batteries.

AC Power (Household Current)

Ensure the unit is turned off.
Connect the provided AC power cord to the AC power input jack on the boombox.
Plug the other end of the power cord into a standard wall outlet (AC 120V/60Hz).

DC Power (Batteries)

For portable use, the unit requires 4 x 'C' size batteries (not included).

Ensure the unit is turned off and disconnected from AC power.
Open the battery compartment cover located on the bottom of the unit.
Insert 4 'C' size batteries, observing the correct polarity (+/-) as indicated inside the compartment.
Close the battery compartment cover securely.

Note: Remove batteries if the unit will not be used for an extended period to prevent leakage and damage.

Side view of the WTB-777 boombox with dimensions 9.8in, 3in, 5.1in, and weight 1.2kg (without batteries).

Image 4.1: Dimensions of the WTB-777 boombox, highlighting its portable size.

5. Operating Instructions

5.1. General Operation

Turn on the unit using the Power button.
Adjust the Volume control to a comfortable listening level.
Use the Function Selector to choose your desired mode (Tape, Radio, Bluetooth, USB).

5.2. Cassette Player/Recorder

A person holding a cassette tape near the WTB-777 boombox, which has its cassette door open, illustrating the cassette player and recording function.

Image 5.1: Operating the cassette player and recorder function.

Playing a Cassette Tape

Set the Function Selector to 'Tape'.
Press the 'Eject' button to open the cassette door.
Insert a cassette tape with the open edge facing upwards and the tape side facing you.
Close the cassette door firmly.
Press the 'Play' button to start playback.
Use 'Fast Forward' or 'Rewind' to navigate the tape.
Press 'Stop' to end playback.

Recording to a Cassette Tape

You can record from the radio or Bluetooth input to a blank cassette tape.

Insert a blank cassette tape into the cassette compartment.
Select the desired input source (Radio or Bluetooth) using the Function Selector.
Start playing the audio you wish to record (e.g., tune to a radio station or start Bluetooth playback).
Press the 'Record' button on the cassette player. The 'Play' button will also engage automatically.
To stop recording, press the 'Stop' button.

5.3. AM/FM Radio Operation

The WTB-777 boombox with a green, leafy background, highlighting its AM/FM Radio Cassette Recorder functions.

Image 5.2: The WTB-777 functions as an AM/FM radio and cassette recorder.

Set the Function Selector to 'Radio'.
Extend the telescopic antenna for optimal FM reception. For AM reception, rotate the unit for best signal.
Rotate the Radio Tuner Dial to select your desired AM or FM station. The frequency scale will indicate the current tuning.
Adjust the Volume control as needed.

An older couple smiling with the WTB-777 boombox in the foreground, showing the AM/FM frequency ranges: FM 87-108 MHz, AM 520-1710 kHz.

Image 5.3: The WTB-777 radio displaying its AM and FM frequency ranges.

5.4. Bluetooth Streaming

A hand holding a smartphone displaying music playback, with Bluetooth signal waves pointing towards the WTB-777 boombox, indicating Bluetooth connectivity.

Image 5.4: Bluetooth connectivity for streaming music to the boombox.

Set the Function Selector to 'Bluetooth'. The unit will enter pairing mode, indicated by a flashing LED or audible prompt.
On your Bluetooth-enabled device (smartphone, tablet), enable Bluetooth and search for available devices.
Select 'WTB-777' from the list of devices to pair.
Once paired, the LED indicator will stop flashing (or provide an audible confirmation).
Start playing audio on your connected device. The sound will now play through the boombox.
Adjust volume using the boombox's Volume control or your connected device.

5.5. USB MP3 Playback

The WTB-777 boombox with a USB flash drive being inserted into its USB port, illustrating its function as a USB MP3 Player.

Image 5.5: The WTB-777 supports USB MP3 playback.

Set the Function Selector to 'USB'.
Insert a USB flash drive containing MP3 audio files into the USB port.
The unit will automatically detect and begin playing the MP3 files.
Use the playback controls (Play/Pause, Next/Previous Track) if available on the unit, or rely on automatic playback.

5.6. MP3 Conversion (Radio/Cassette to USB)

The WTB-777 allows you to convert audio from the radio or cassette player directly to MP3 files on a USB drive.

Insert a USB flash drive into the USB port.
Select the source you wish to record from (Radio or Tape) using the Function Selector.
Start playing the audio from the source (e.g., tune to a radio station or play a cassette tape).
Press the 'Record to USB' button (refer to your unit's specific button layout if not clearly labeled).
The recording will begin, converting the audio to MP3 format on your USB drive.
Press the 'Stop' button to end the recording.

6. Maintenance

6.1. Cleaning

Always unplug the unit from the power source before cleaning.
Use a soft, dry cloth to wipe the exterior surfaces.
Do not use abrasive cleaners, waxes, or solvents as they may damage the finish.
For the cassette player, periodically clean the tape head and pinch roller with a cotton swab lightly dampened with isopropyl alcohol.

6.2. Storage

If storing the unit for an extended period, remove the batteries to prevent leakage.
Store in a cool, dry place away from direct sunlight and extreme temperatures.

7. Troubleshooting

Problem	Possible Cause	Solution
No power	Power cord not connected; Batteries depleted or incorrectly inserted.	Ensure AC cord is securely plugged in; Replace batteries or check polarity.
No sound	Volume too low; Incorrect function mode selected; Headphones connected.	Increase volume; Select correct function (Tape, Radio, BT, USB); Disconnect headphones.
Poor radio reception	Antenna not extended; Weak signal.	Fully extend the telescopic antenna; Reposition the unit for better signal.
Cassette tape not playing/recording	Tape incorrectly inserted; Tape damaged; Cassette door not closed.	Reinsert tape correctly; Try a different tape; Ensure cassette door is closed.
Bluetooth not pairing	Unit not in pairing mode; Device too far; Bluetooth already connected to another device.	Set function to Bluetooth; Move device closer; Disconnect from other devices and try again.
USB not playing	USB drive not inserted correctly; Incompatible file format; USB drive corrupted.	Reinsert USB drive; Ensure files are MP3 format; Try a different USB drive.

8. Specifications

Model: WTB-777
Brand: WIITHINK
Product Dimensions (L x W x H): 9.8 x 3 x 5.1 inches
Item Weight: 2.72 pounds (without batteries)
Connectivity Technology: Bluetooth, USB, Earphone Jack
Radio Frequency Range: FM 87 - 108 MHz, AM 520 - 1710 kHz
Power Source: AC 120V/60Hz or 4 x 'C' size batteries (DC)
Speaker Type: Portable
Color: Black

9. Safety Information

Do not expose the unit to rain or moisture to prevent fire or shock hazards.
Do not open the casing. Refer all servicing to qualified personnel.
Avoid placing the unit near heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
Only use attachments/accessories specified by the manufacturer.
Unplug this apparatus during lightning storms or when unused for long periods of time.

10. Warranty and Support

For warranty information or technical support, please refer to the documentation included with your purchase or contact WIITHINK customer service directly. Contact details can typically be found on the manufacturer's official website or on the product packaging.

Please have your model number (WTB-777) and purchase date ready when contacting support.

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WIITHINK WTB-777