The YYK-525 is a single-ear Bluetooth 5.1 headset designed for professional business use, driving, and hands-free communication. It features a rotating ear hook (270–360 degrees) to fit either the left or right ear. Quick Setup & Pairing
All non-essential lights and sounds are disabled. The processor throttles to essential functions only, extending battery life up to 72 hours.
To ensure the longevity of your YYK525, adhere to the following maintenance schedule:
Ensure the phone hasn't switched to speakerphone.
While the headset is OFF , press and hold the ON/OFF key for 8 seconds . Place it back in the charging case to complete the reset cycle. Technical Specifications Bluetooth Version: 5.1 + EDR