Greadio Portable CD Player with Bluetooth (Model CD-35H) Instruction Manual

1. Introduction

This manual provides detailed instructions for the safe and efficient operation of your Greadio Portable CD Player with Bluetooth, Model CD-35H. Please read this manual thoroughly before using the device and retain it for future reference.

2. Package Contents

Verify that all items listed below are included in your package:

• Greadio Portable CD Player (Model CD-35H)
• 3.5mm Earphones
• AUX Cable
• Type-C Charging Cable (Adapter Not Included)
• Storage Bag
• User Manual

Image: Greadio Portable CD Player (Model CD-35H) with its complete set of accessories, including earphones, a Type-C charging cable, an AUX cable, and a protective storage bag.

3. Product Overview

Familiarize yourself with the various components and controls of your CD player.

3.1 Front Panel Controls and Display

Image: Detailed view of the Greadio CD Player's front, highlighting the central LCD screen, playback controls (Play/Pause, Skip, Repeat/Program, Function), volume buttons, and dual integrated speakers.

• LCD Display: Shows track number, time, battery level, and mode indicators (CD, Bluetooth, FM frequency).
• Play/Pause Button (►⏸): Starts or pauses CD/USB playback.
• Skip Forward (►►): Skips to the next track. Long press for fast forward.
• Skip Backward (◄◄): Skips to the previous track. Long press for fast rewind.
• REP/PROG Button: Toggles repeat modes (single track, all tracks) and enters program mode.
• FUN. Button: Selects operating modes (CD, Bluetooth Transmitter, Bluetooth Receiver, FM Transmitter, USB).
• VOL+ / VOL- Buttons: Adjusts the volume level.
• /SLEEP Button: Power on/off. Short press to activate sleep timer.
• FM Transmitter Button: Activates and adjusts FM transmission frequency.
• BT Transmitter Button: Activates Bluetooth transmission mode.
• Integrated Dual Speakers: Provides direct audio output.

3.2 Side and Rear Connections

• Type-C Charging Port: For charging the internal battery.
• 3.5mm AUX Output: For connecting headphones or external speakers via AUX cable.
• USB Port: For playing audio files from a USB flash drive.

4. Setup

4.1 Charging the Device

Before first use, fully charge the CD player. The device features a built-in 2000mAh rechargeable battery.

1. Connect the provided Type-C charging cable to the charging port on the CD player.
2. Connect the other end of the cable to a USB power adapter (5V/1A, not included) or a computer USB port.
3. The battery indicator on the LCD display will show charging status. A full charge typically takes approximately 4.5 hours.
4. Once fully charged, the battery icon will show full. Disconnect the charging cable.

Image: Illustration of the Greadio CD Player's 2000mAh rechargeable battery, indicating charging time (4.5 hours) and approximate playback times for CD (5 hours), USB (7 hours), and Bluetooth (9 hours) modes.

4.2 Inserting a CD

1. Gently slide the CD compartment cover open.
2. Place the CD with the label side facing up onto the center spindle. Ensure the CD is securely seated.
3. Close the CD compartment cover until it clicks into place.

5. Operating Instructions

5.1 Power On/Off

Press and hold the /SLEEP button to power the device on or off.

5.2 CD Playback

1. Insert a CD as described in Section 4.2.
2. Press the FUN. button until "CD" mode is displayed.
3. Press the Play/Pause (►⏸) button to start playback.
4. Use Skip Forward (►►) and Skip Backward (◄◄) buttons to navigate tracks.
5. Press REP/PROG repeatedly to cycle through repeat modes (e.g., repeat one, repeat all).
6. To program tracks: In stop mode, press REP/PROG. Use skip buttons to select a track, then press REP/PROG again to add it to the program list. Repeat for up to 20 tracks. Press Play/Pause (►⏸) to play the programmed sequence.

The device supports CD, MP3, CD-R, and CD-RW formats.

Image: The Greadio CD Player demonstrating its anti-skip technology, which provides 90 seconds of buffering for MP3s and 35 seconds for standard CDs to prevent interruptions during movement.

5.3 Bluetooth Transmitter Mode

This mode allows the CD player to send audio wirelessly to Bluetooth headphones or speakers.

1. Ensure your Bluetooth headphones or speaker are in pairing mode.
2. Play a CD or insert a USB drive with audio.
3. Press the BT TRANSMITTER button once. The Bluetooth icon on the LCD will flash, indicating pairing mode.
4. Once connected, the Bluetooth icon will stop flashing and remain solid.

Note: Bluetooth transmitter function is only available in CD and USB mode. It does not support connection to car Bluetooth systems.

Image: Visual representation of the Greadio CD Player transmitting audio via Bluetooth to various devices like earphones and portable Bluetooth speakers. A warning indicates it cannot connect to car Bluetooth.

5.4 Bluetooth Receiver Mode

This mode allows the CD player to receive audio wirelessly from a smartphone, tablet, or laptop and play it through its integrated speakers or connected headphones/speakers.

1. Press the FUN. button repeatedly until "BT" mode is displayed on the LCD. The Bluetooth icon will flash.
2. On your smartphone, tablet, or laptop, open Bluetooth settings.
3. Search for and select "CD-35H" from the list of available devices.
4. Once connected, the Bluetooth icon on the CD player will stop flashing. You can now play audio from your device through the CD player.

Image: A user connecting their smartphone to the Greadio CD Player in Bluetooth Receiver mode, enabling wireless audio streaming from the phone to the CD player's speakers or connected output.

5.5 FM Transmitter Mode

This feature allows you to broadcast the audio from your CD player to an FM radio, such as a car stereo or home radio system.

1. Ensure a CD is playing or USB audio is active.
2. Press the FM TRANSMITTER button. The FM frequency will appear on the LCD.
3. Use the Skip Forward (►►) and Skip Backward (◄◄) buttons to adjust the FM frequency (87.5-108MHz).
4. Tune your car radio or home stereo to the same FM frequency displayed on the CD player.
5. Adjust the volume on both the CD player and the receiving FM radio for optimal sound.

Image: Two panels illustrating the FM Transmitter feature. The top panel shows the Greadio CD Player placed in a car, transmitting audio. The bottom panel shows a car radio display tuned to the same FM frequency, receiving the audio.

5.6 USB Playback

The CD player can play MP3, WAV, and FLAC audio files from a USB flash drive (up to 256GB).

1. Insert a USB flash drive into the USB port on the side of the CD player.
2. Press the FUN. button repeatedly until "USB" mode is displayed.
3. The device will automatically begin playing audio files from the USB drive.
4. Use the playback controls (Play/Pause, Skip, Repeat) as you would for CD playback.

5.7 AUX Playback

Connect the CD player to external audio devices using the provided AUX cable.

1. Connect one end of the 3.5mm AUX cable to the AUX output port on the CD player.
2. Connect the other end to the AUX input of your external speaker, car stereo, or other audio system.
3. Ensure the CD player is in CD or USB playback mode. The audio will be routed through the AUX cable.

Image: A composite image illustrating three connectivity options: USB playback from a flash drive, AUX cable connection for car audio, and direct earphone connection to the Greadio CD Player.

5.8 Sleep Timer Function

The sleep timer allows the device to automatically power off after a set period.

1. While the device is on, short press the /SLEEP button.
2. The display will show the current sleep timer setting (e.g., "10 MIN").
3. Press the /SLEEP button repeatedly to cycle through available timer settings (10-90 minutes) or to disable the timer.
4. The device will automatically power off once the selected time has elapsed.

Image: A person resting in bed with the Greadio CD Player on a nightstand, demonstrating the sleep timer feature which allows automatic shutdown after 10-90 minutes of playback.

6. Maintenance

• Cleaning: Use a soft, dry cloth to clean the exterior of the CD player. Do not use liquid cleaners or abrasive materials.
• CD Care: Handle CDs by their edges. Clean dirty CDs with a soft, lint-free cloth, wiping from the center outwards.
• Storage: When not in use for extended periods, store the CD player in a cool, dry place, preferably in its protective storage bag.
• Battery: To prolong battery life, avoid fully discharging the battery frequently. Charge the device regularly, even if not in use.

7. Troubleshooting

8. Specifications

• Brand: Greadio
• Model: CD-35H
• Compatible Devices: Headphones, Laptops, Smartphones, Speakers
• Special Features: Anti-Skip Protection, Battery Level Indicator, Bluetooth 5.1, FM Transmitter, Rechargeable Battery, Dual Speakers, Sleep Timer
• Audio Output Mode: Stereo
• Supported Audio Formats (CD Mode): CD Audio, CD-R, CD-RW, MP3
• Supported Audio Formats (USB Mode): MP3, WAV, FLAC (up to 256GB USB drive)
• Power Source: Battery Powered (2000mAh Lithium Polymer)
• Battery Average Life: Approximately 5 hours (CD), 7 hours (USB), 9 hours (Bluetooth)
• Charging Time: Approximately 4.5 hours
• Connectivity Technology: Bluetooth 5.1, USB, 3.5mm AUX
• Item Weight: Approximately 0.71 Pounds (322.05 g)
• Dimensions: 22.2 x 18.6 x 6.2 cm (Parcel Dimensions)

9. Warranty and Support

Your Greadio Portable CD Player (Model CD-35H) is backed by a 12-month warranty from the date of purchase.

For technical support, warranty claims, or any questions regarding your product, please contact Greadio customer service. Refer to the contact information provided on the product packaging or the official Greadio website.

Please retain your proof of purchase for warranty service.