The PRM-USTB is a professional-grade multi-source music player designed to provide background music for public address and commercial audio applications. It supports a variety of audio sources, including Bluetooth®, USB, SD card, and FM radio, making it perfect for use in hotels, supermarkets, restaurants, gyms, and other venues where ambient music is important.

Key Features:

• Bluetooth® Music Streaming: Stream music wirelessly from Bluetooth®-enabled devices (e.g., mobile phones, tablets, computers).
• MP3 Playback from USB/SD: Supports MP3 playback from USB or SD cards, allowing for up to 32 GB of storage (approximately 8000 tracks).
• FM Tuner: Includes a digitally controlled FM tuner with Radio Data System (RDS), preset station memory, and digital control.
• Simultaneous Operation: Both the USB/SD player and FM tuner can be operated simultaneously, with audio output independently routed to different terminals.
• Automatic Source Switching: When no media player is active, the combined output switches automatically to the FM tuner.

Functions:

1. USB/SD Playback:

   • High Capacity: Supports USB/SD cards up to 32 GB for storing up to 8000 tracks.
   • Music Organization: Automatically detects and plays files organized in multiple folders on the USB/SD device.
   • File Support: Supports MP3 files with bitrates from 32 kbps to 320 kbps (CBR/VBR), and playback in mono or stereo.
   • Versatile Formats: Plays a variety of file formats including MP3, WMA, WAV, FLAC, APE, and M4A.

2. FM Tuner:

   • FM Range: 87.5 MHz to 108 MHz.
   • Preset Memory: Store favorite radio stations for quick access.
   • High-Quality Reception: Digitally controlled tuner ensures accurate reception and high sound quality.

3. Bluetooth® Streaming:

   • Version: Bluetooth® 5.0 for fast, stable connections.
   • Range: Capable of streaming from up to 5 meters away.
   • Profiles Supported: A2DP (Advanced Audio Distribution Profile) and AVRCP (Audio/Video Remote Control Profile) for seamless streaming and control from paired devices.

4. Simultaneous Output:

   • Separate outputs for the digital source (USB, SD, Bluetooth®) and the FM tuner, enabling playback from both sources simultaneously.
   • Volume Control: Adjust the output levels through the front panel or remote control.

5. Automatic Switching:

   • A combined output prioritizes the media player; if no active media input is detected, it automatically switches to the FM tuner.

Included Components:

• PRM-USTB Music Source Unit
• Mains Power Cord
• 19-inch Mounting Brackets with Screws
• Remote Control (battery not included)
• 2 Stereo RCA Audio Cables (Unshielded)
• FM Antenna Cable with Connector
• 16 GB SD Memory Card
• Quick Installation Guide
• Safety Information

Technical Specifications:

1. Electrical:

   • Power Supply: 110-120 VAC or 220-240 VAC, 50-60 Hz.
   • Power Consumption: 15 W.
   • Fuse Rating: 0.63 A / 250 V.

2. FM Tuner:

   • Frequency Range: 87.5 MHz – 108 MHz.
   • Signal-to-Noise Ratio: >50 dB.
   • Channel Separation: >25 dB.
   • Audio Output: 1.5 V RMS ± 1 dB at 10 kΩ.

3. USB/SD Media Source:

   • Frequency Response: 50 Hz – 18 kHz ±1 dB.
   • Signal-to-Noise Ratio: >75 dB.
   • Total Harmonic Distortion: <0.5%.
   • Audio Output: 1.5 V RMS ± 1 dB at 10 kΩ.
   • Maximum Capacity: 32 GB.

4. Bluetooth®:

   • Version: Bluetooth® 5.0.
   • Range: >5 meters.
   • Signal-to-Noise Ratio: >75 dB.
   • Audio Output: 1.5 V RMS ± 1 dB at 10 kΩ.

5. Mechanical:

   • Dimensions: 44 mm x 482 mm x 250 mm (1.73 in x 18.97 in x 9.84 in), without brackets: 44 mm x 430 mm x 250 mm (1.73 in x 16.93 in x 9.84 in).
   • Weight: 3.20 kg (unit).

6. Environmental:

   • Operating Temperature: 0 °C – 45 °C.
   • Storage Temperature: -40 °C – 70 °C.
   • Operating Humidity: <90% (non-condensing).

Regulatory Information:

• Safety: EN 62368-1
• Immunity: EN 55035
• Emissions: EN 55032, EN 61000-3-3
• Environment: EN IEC 63000
• Wireless: EN 301489, EN 300328