Upgrade 4 in 1 Design: This USB C to 3.5mm adapter features dual 3.5mm headphone jacks, a USB C audio port, and USB C power delivery, allowing you to listen to music, watch videos, use audio navigation, control playback, or make calls while charging. Charge your USB C device and enjoy audio simultaneously with this adapter. Note: The USB C audio port and 3.5mm headphone jack cannot be used at the same time. Dual 3.5mm headphone jacks can be used simultaneously. Enjoy Hi-Res Sound: This USB C headphone splitter includes a built-in high-quality smart chip (Realtek Chip/DAC) that supports Hi-Res audio up to 24bit/96kHz. It ensures stable and lossless transmission of digital audio signals for an enhanced listening experience. PD 3.0 and QC 3.0 Fast Charging: This USB C charging splitter supports Power Delivery 3.0 and Quick Charge 3.0, significantly reducing charging time. The tin-plated thickened copper core provides safe, stable, and efficient fast charging without damaging your device or increasing power consumption. Note: Not compatible with Moto or OnePlus phones. Does not support Android Auto. Wide Compatibility: This USB C headphone splitter is compatible with most USB C devices, including smartphones, tablets, laptops, and headphones. Works with Galaxy Note 10/10+/S20/S20+/S20 Ultra, Galaxy Note 20/Note 20 Ultra, New iPad Pro, Google Pixel 4/4XL/3/3XL/2/2XL, HTC U11/U12, Essential PH-1, LG, Essential Phone, Dell, and other devices with a USB C port. High-Quality Materials and Customer Support: Constructed with a durable aluminum alloy oxidized shell for improved wear and corrosion resistance, enhancing anti-interference performance. Made from high-quality ABS material for long-lasting use. Compatible with most standard earphones. For any product inquiries, support is available within 24 hours.