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Details on power, source selection, volume, input/output ports like USB, Line In, and microphone jacks.
Buttons for playback, tuning, repeat, equalizer, and echo level adjustments.
Information on LED display, disco light, lantern, and status indicators for power, Bluetooth, and battery.
Description of the carrying handle, ruggedized housing, and trolley feature.
Guidance on checking contents and essential safety precautions for operation and maintenance.
Steps for connecting the AC adapter and indicator behavior during power-up and charging.
Instructions for pairing the device via Bluetooth and confirming connection status.
How to tune, scan, and select stations in FM Radio mode.
Instructions for playing music from a USB drive and repeat functions.
How to connect external audio devices via the 3.5mm Line In port.
Information on battery indicators and recommended initial charging time.
Guidance on using the device's USB port to charge external devices.
How to connect microphones, adjust volume, and use echo effects for karaoke.
Steps for using wireless microphones with the unit.
How to select equalizer presets and control the disco light/lantern.
Explanation of automatic standby and power-off features.
Solutions for no power, unresponsive keys, and no sound.
Troubleshooting for poor audio quality and inability to pair Bluetooth devices.
Details on input sources, power output, Bluetooth range, and controls.
Technical details for Bluetooth version, profiles, frequency, and wireless microphone reception.
Warnings regarding exposure to liquids, splashing, and proper placement.
Information on battery operation, charging, and playback duration.
Guidelines for environmentally responsible disposal of the product and batteries.
Details on the 2-year manufacturing defect guarantee and validity requirements.
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