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Guidelines on safe volume levels, hearing protection, and avoiding dangerous environments while using the headset.
Instructions for cleaning the headset with a dry cloth, avoiding water immersion, and operating within specified temperature ranges.
Steps for charging the headset using the original USB cable and indicator light status during charging.
Details on charging time (3.5 hours) and warnings about battery removal or using improper charging cables.
How to turn the headset on, enter pairing mode, and indicators for pairing status.
Steps to enable Bluetooth on a device, find the headset (SX-990), and complete the pairing process.
Instructions for connecting the headset to two mobile phones sequentially.
How the headset automatically reconnects to previously paired devices and troubleshooting connection issues.
Handling incoming/outgoing calls: answering, ending, rejecting, redialing, and transferring calls.
Instructions for initiating voice dialing on compatible mobile phones.
Controlling music: play, pause, skipping tracks, and adjusting volume.
Alerts for when the headset is out of range of the connected mobile phone.
Procedure to restore the headset to its original factory default settings.
Guidance on the correct method for retracting earbud wires to prolong headset life.
Details on Bluetooth version, supported profiles, transmitting power, and working distance.
Information on charging time, talk time, music time, and standby time.
Statement regarding compliance with Part 15 of FCC Rules and operational conditions.