Electronics / Audio
Trevi RA 7F50 BT Multiband Radio and Wireless Audio Player
Comprehensive user guide for the Trevi RA 7F50 BT, covering radio operation, MP3 playback via USB/microSD, wireless connectivity, and battery maintenance.
Table of contents
Product Overview
The Trevi RA 7F50 BT is a versatile, high-precision electronic device designed for home use. It functions as a multiband radio (FM/AM/SW) and a wireless audio player, supporting playback from USB flash drives and microSD cards. The device is powered by an internal rechargeable lithium battery, which can be charged via a USB Type-C port or an integrated solar panel.
Safety and Usage Precautions
To ensure long-lasting performance and safety, please observe the following guidelines:
- Avoid using the device near magnetic fields, heat sources, or in environments with high humidity, dust, or strong vibrations.
- Maintain at least 5 cm of space around the device for proper air circulation.
- Do not expose the device to dripping or splashing liquids.
- Keep the volume at a safe level to prevent hearing damage.
- If the device overheats or liquids penetrate the casing, disconnect it immediately and contact an authorized service center.
Getting Started
Before first use, ensure the battery is fully charged. Connect the device to a 5V 1A power supply using the provided USB Type-C cable. The 'Charge' LED will light up red during charging and turn off once complete. It is recommended to keep the device switched off during the charging process.
Operation Modes
The device features a function selector to switch between modes:
- Radio: Select the desired wave range (FM/AM/SW), extend the telescopic antenna fully, and use the tuning knob to find stations. For best FM reception, adjust the antenna length and orientation.
- MP3 Player: Insert a USB drive or microSD card and set the selector to 'MUSIC'. Playback starts automatically. Use the playback controls to pause, skip tracks, or fast-forward.
- Wireless Function: Set the selector to 'MUSIC' without any external storage inserted. Search for 'RA 7F50 BT' on your smartphone or device and pair using PIN '0000' if prompted.
- AUX Input: Connect an external audio source using a 3.5mm jack cable and select the AUX mode using the MODE button.
Maintenance and Disposal
Clean the device with a soft, slightly damp cloth. Avoid solvents or abrasive materials. The internal battery should only be replaced by specialized technical personnel. At the end of its life, the product must be disposed of at designated separate waste collection centers, not with household waste.
Manufacturer information
TREVI S.p.A.
Practical help
Common problems
Device shuts down suddenly or behaves abnormally
Perform a complete recharge of the internal battery.
Poor FM radio reception
Extend the telescopic antenna fully and adjust its orientation. Reception quality also depends on the device's location.
Multiple storage devices inserted
If both USB and microSD are present, remove the one you do not wish to play.
Before use
- Ensure the battery is fully charged using a 5V 1A power supply.
- Check that all power and connection cables are installed correctly.
- Ensure the device is placed in a well-ventilated area (5 cm clearance).
- Verify the antenna is fully extended for radio operation.
- Ensure no heat sources or magnetic fields are nearby.
Specs in practice
- Reception Range
- FM: 87.5-108.0 MHz, AM: 530-1710 KHz, SW: 3-23 MHz.
- Power Supply
- 3.7V 1500mAh lithium battery, rechargeable via USB-C (5V 1A) or solar panel (80mA max).
- Wireless Specs
- 2.4GHz frequency with 2.5mW transmission power.
Model compatibility
- Supports USB memory and microSD cards for MP3 playback.
- Wireless pairing requires PIN '0000' if requested.
- AUX input supports standard 3.5mm jack audio devices.
Manual page author
Emily Carter
User documentation editor
Prepares concise manual descriptions and highlights the most useful setup, operation, and maintenance information for readers.