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Details on charging the headphone battery and low battery indicators.
Instructions for turning the device on and off using the play/pause button.
Steps to turn on, pair, and connect the headphone via Bluetooth.
Instructions for answering, ending, making, and rejecting calls.
Controls for playing music, track skipping, and volume adjustment.
Using the headphone as an MP3 player with an SD card.
Tuning into FM radio stations and managing channels.
How to switch between Bluetooth, MP3, and FM modes.
Activating and using the headphone's speaker feature.
Connecting the headphone via a 3.5mm AUX cable for wired audio.
Precautions regarding temperature and air pressure during use.
Critical warnings on battery handling, disposal, and extreme conditions.
Details of the product warranty, terms, and customer service contact.