Double functionality: supports 3.5mm headphones and USBC charging simultaneously, allowing you to listen to music while charging your device. sound transmission: delivers stable and clear audio for calls and music, maintaining quality signal integrity. Durable aluminum construction: made from quality aluminum alloy; wearresistant, dropproof, and provides efficient heat dissipation for lasting durability. Wide compatibility: compatible with most USBC devices; easy connection with a variety of 3.5mm headphones for seamless use. Use scenarios: While commuting or traveling, listen to music or take calls on a USBC device while charging. In the office or at home, connect a 3.5mm headset to a USBC laptop or tablet and charge at the same time. While gaming or multimedia on a USBC device, use a wired headset and keep the device charged.