Manual:

http://myosuploads3.roymall.com/products/20250105/20250105234758SKUK86359.pdf

Specification:
Brand: SANSUI
Model: F51
Display: 7-inch IPS screen
bluetooth Version: 5.3
Speaker: 3-inch internal magnetic speaker
Rated Power: 5W
Frequency Response: 100Hz-18KHz
Battery: 18650 lithium battery (1200mAh x 3), detachable
Input Power Supply: DC 5V/1A
Dimensions: 223 x 34.5 x 124.5 mm
Supported Functions: bluetooth/FM/MW/SW/Video/Audio/eBook
Video Formats: H.264HP High bitrate, RM, AVI, MKV, VOB, MOV, FLV, ASF, DAT, MP4, 3GP, MPG, MPEG up to 1080P
Audio Formats: MP3, WAV, OGG, APE, FLAC (supports lyrics display)
Image/eBook Formats: JPG, JPEG, BMP, GIF, PNG, TXT ANSI

Features:
1. Large 7-inch IPS Display: True color high-definition LED screen supports full format 720P HD video and up to 1080P video playback.
2. bluetooth 5.3: Enables remote wireless connection and lossless music playback, providing the latest in bluetooth technology.
3. High Sensitivity Antenna: 360-degree rotating lever 53cm antenna for FM, AM, and SW bands, including automatic radio reception and for campus broadcasting support.
4. Versatile Playback Options: Supports USB flash drive and dual TF card playback for digital song selection and requests. Includes earphone function.
5. User-Friendly Adjustments: Features knob-type volume adjustment, channel tuning, and radio reception for seamless user experience.
6. Enhanced Sound Quality: Equipped with a 3-inch internal magnetic speaker, offering a clear and pleasant audio experience.
7. Long Battery Life: Includes three detachable 18650 lithium batteries (1200mAh each) for ultra-long battery life over 8 hours.

Package Include:
1 x SANSUI F51 Radio
1 x Type-C Charging Cable
1 x Leather Handle
1 x Instruction Manual