The internal architecture of the YYK-525 balances lightweight comfort with an extended battery lifecycle. Technical Specification Details Bluetooth V5.1 + EDR for ultra-low latency Supported Protocols A2DP, AVRCP, HFP, HSP, EDR Transmission Range Over 10 meters (33 feet) with clear line-of-sight Impedance 13Ω ± 10% Frequency Band 2.402GHz – 2.480GHz Earbud Battery 60mAh to 100mAh Lithium polymer battery Charging Case Capacity 500mAh portable power bank storage case Talk / Playback Time Approximately 10 to 12 hours continuous use Standby Duration Up to 400 hours total standby capacity Charge Time ~1.5 hours for the earbud; ~1.5 hours for the charging case Waterproof Class Daily activity protection (sweat, rain, splashing) 🔋 Initial Setup and Battery Management
: The indicator light will flash red and blue alternately, indicating it has entered pairing mode. yyk525 user manual exclusive
Take the earbud out of the charging bin. It will automatically enter pairing mode, with the red and blue lights flashing alternatively . Phone Settings: Turn on the Bluetooth function on your phone (or laptop). Search Device: Search for new Bluetooth devices. Select " Go to product viewer dialog for this item. " from the list. It will automatically enter pairing mode, with the