Retekess V115 Portable AM/FM/SW Radio with MP3 Player Instruction Manual

Introduction

Thank you for purchasing the Retekess V115 portable radio. This manual provides detailed instructions on how to set up, operate, and maintain your device. Please read it thoroughly before use to ensure proper functionality and safety.

Product Overview

The Retekess V115 is a compact, multi-functional digital radio featuring AM, FM, and Shortwave (SW) bands, MP3 playback from Micro SD cards, and recording capabilities. It is designed for portability and ease of use, measuring 12x2x8cm and being lightweight enough to fit easily into a pocket.

Figure 1: Front view of the Retekess V115 radio with key components labeled. Labels include 360-degree rotating antenna, microphone, LCD display, power switch, MODE key, FM/AM band switch, SW band switch, numeric keypad, previous/next track keys, play/pause key, REC (record) key, DEL (delete) key, and volume adjustment.

Figure 2: Overview of Retekess V115 features, including Japanese language support, subwoofer, MicroSD card MP3 playback (up to 32GB), one-touch volume adjustment (0-32 levels), three recording modes, and a sleep auto-off function (0-90 minutes). Also shows frequency ranges: FM (64-108MHz/87-108MHz), AM (522-1710KHz), SW (4.75-21.85MHz).

Figure 3: Detailed view of the Retekess V115, illustrating the 360-degree rotatable antenna, the 1000mAh removable rechargeable BL-5C lithium battery, and the various ports including the headphone jack, line-in jack, Micro-SD card slot, and Type-C USB charging jack.

Setup

Language Settings

The device supports multiple languages. To change the display language:

1. Press and hold the MENU key to display the main menu.
2. Use the << or >> buttons to navigate to "Language" (言語選択).
3. Press the >|| key to select and confirm "Japanese" (日本語).

Figure 4: Steps to change the display language to Japanese via the system settings menu.

FM Frequency Settings

To adjust the FM frequency range:

1. Press and hold the MENU key to display the main menu.
2. Use the << or >> buttons to navigate to "FM Settings" (FM設定).
3. Press the >|| key to enter the FM settings.
4. Select your desired frequency range (e.g., 64-108MHz or 87-108MHz) and press the >|| key to confirm.

Note: The default frequency band after turning on the V115 may be 87-108MHz. Please set it to the 64-108MHz band if needed.

Figure 5: Steps to configure the FM frequency range.

AM Step Settings

To adjust the AM stepping frequency:

1. In AM radio mode, press and hold the MENU key to display the main menu.
2. Use the << or >> buttons to navigate to "AM Stepping Set".
3. Press the >|| key to select your desired step (9KHz or 10KHz) and confirm.

Operating Instructions

Tuning and Saving Stations

You can tune to stations manually, automatically, or by direct frequency input. The radio can store up to 440 channels (FM: 80ch, AM: 60ch, SW: 300ch).

• Manual Tuning: In radio mode, press and hold the << or >> buttons to search for channels forward or backward. The search will stop and playback will begin when a receivable station is found.
• Direct Frequency Input: Enter the desired frequency using the numeric keypad. For example, to tune to 89.8MHz, press 8, 9, 8, then press >|| to confirm. The radio will jump to 89.8MHz.
• Automatic Search and Save: In radio mode, press and hold the >|| key to enter automatic channel search and save mode. Available channels will be automatically searched and saved from low to high frequencies. Once saving is complete, press << or >> to recall and listen to saved channels. If unwanted stations are automatically saved, press the DEL key to delete them.
• Manual Preset Save: After searching for a radio station, press and hold the numeric key "5" to enter the radio station save mode. Input the preset number using the numeric keypad.
• Delete Preset: Press and hold the DEL key to delete a preset.

Figure 6: The radio display showing a tuned FM frequency of 89.8 MHz on channel 00.

MP3 Playback and Recording

The device supports MP3 playback from a Micro SD card and offers three recording modes. If downloaded files contain lyrics in LRC format, they will be displayed on the screen.

1. MIC Recording: Insert a Micro SD card. In playback mode, long-press the REC key to enter recording mode. Press it again to stop recording.
2. Line-in Recording: Connect an external audio source via the line-in jack and adjust the volume. Long-press the REC key to enter recording mode. Press it again to stop recording.
3. Radio Recording: Press the FM/AM key to enter radio mode. In playback mode, long-press the REC key to enter recording mode. Press the REC key during recording to stop. Press the ▶|| key during recording to pause/resume. Recording resolution can be set to 64kbps, 96kbps, or 128kbps. Higher resolution improves sound quality but increases file size.

Sleep Timer

The sleep timer function allows you to set the radio to automatically turn off after a specified period, up to 90 minutes, in 10-minute increments. This helps conserve battery and prevents disturbance during sleep.

Sound Effects

Choose from a variety of sound effects including Natural, Pop, Rock, Jazz, Country, and Heavy Bass to customize your listening experience according to your preferences.

Battery and Charging

The Retekess V115 is equipped with a 1000mAh lithium-ion battery. It takes approximately 4 hours to fully charge using the included USB-C cable. A full charge provides about 13 hours of standard use or 23 hours with headphones.

Important: Before first use, charge the radio for 6 hours. Subsequent charges will take approximately 4 hours. Use the included charging cable. It is not recommended to use the radio while charging, especially for AM reception, as AC power may interfere with reception. If the radio will not be used for a long time, remove the battery or fully charge it every two months to maintain battery health.

Figure 7: The 1000mAh rechargeable lithium-ion battery.

Specifications

Troubleshooting

• Poor Reception: When listening to broadcasts, place the radio near a window and away from other electronic devices. Adjust the direction of the radio and extend the antenna for optimal reception. Due to the nature of FM and AM, FM reception may be weaker than AM in indoor environments with many obstacles. Reception sensitivity differs between indoor and outdoor environments with obstructions.
• Noise during Charging (AM): It is not recommended to use the radio while charging, especially for AM reception, as AC power may cause interference.
• Headphone Interference (FM): Some users have reported reduced FM reception sensitivity when headphones are connected. If you plan to listen to FM broadcasts with headphones, this model might not be ideal.

Maintenance

• Keep the radio away from water and other liquids.
• Avoid dropping or subjecting the device to strong impacts.
• Do not expose the radio to direct sunlight for extended periods.
• Do not attempt to disassemble or repair the device yourself.
• If not using the radio for a long period, remove the battery or fully charge it every two months to maintain battery health.

Support

For further assistance or inquiries, please contact Retekess customer support or visit our official website.

Official Store: Retekess Amazon Store