User Manual
Model:
TR638
1: Product appearance diagram
Thank you for your purchase. Before using the product, we kindly ask you to carefully read this user guide and keep it in a
safe place.
2: Brief Description of Product Features
This product uses software programming to achieve FM, medium wave, short wave, and full-band wireless radio reception,
delivering excellent sound quality.
This device allows for wireless music playback through Bluetooth connectivity and supports music playback via TF and
USB cards.
This product offers two power supply options: AC and DC.
This product features a large 4-inch, 4Ω, 8W speaker, delivering clear and powerful audio quality. It also supports headphone
connectivity for private listening.
The large rotary knob is used for tuning radio stations, making the operation simple and easy to understand.
This product offers versatile functionality. In addition to the large tuning knob for station selection, it also features a station
auto-tuning function, supporting both full-automatic radio station search and auto-search for radio stations.
This product offers the following features: scheduled power-on, sleep mode power-off, locking, and mute functions.
The LCD large screen displays various information, including the time, battery status, frequency, track number, playback
time, and operating mode, providing users with clear operational instructions.
This product features backlighting for user convenience in low-light conditions, with adjustable brightness levels (standard
and high brightness) available.
The radio function can memorize up to 110 radio stations (AM: 20, FM: 30, SW: 60).
It supports TF cards with a maximum capacity of 256GB and can play WMA, WAV, APE, and FLAC formats.
In Bluetooth/TF/USB music playback modes, you can pause playback, fast forward or rewind, and select the previous or
next song.