The headset uses a Multi-Function Button (MFB) and volume switches to manage calls and media without touching your phone: Control Command Click the Switch button once Refuse Call Double-click the Switch button Pause/Play Music Click the Switch button Next/Previous Track Long press Volume+ or Volume- for 1 second Activate Voice Assistant (Siri) Press and hold the Switch button for 2 seconds Mute Microphone Press and hold the dedicated Mute button Reset Headset While off, press and hold the ON/OFF key for 8 seconds Hardware Specifications
Dispose of the unit and batteries per local regulations. Do not throw batteries in regular trash. yyk525 user manual exclusive
: Remove the headset from the charging case; it will automatically turn on. The headset uses a Multi-Function Button (MFB) and
Press and hold the Function (FN) button while connecting the power. The OLED screen will flash a firmware version (e.g., v2.4.1 ). The exclusive Pro feature requires version 2.4 or higher. Press and hold the Function (FN) button while