Features: HiFi-Definition Sound Quality:32bit / 384KHz high definition sampling rate, built-in DAC chip, high-quality definition sound, catch every detail, pure HIFI-sound quality. 60W-PD Fast Charge: Support-charging and listen/call at the same-time,support 60w max-PD fast-charging for the phones. Support-calling /Listening-to the music, OMTP / CTIA Headphone automatic switching. It supports microphone in-line control, making it convenient to make calls and control the music-playlist. Add little burden to your travel, but greatly increase your music or gameplay enjoy. Specifications: Material:Aluminium-Alloy Size:Approx.4.1x2cm/1.61x0.78inch Color: Black/Gray Package Includes: 1x Headphone Jack Audio Adapter note: ①.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. ②.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.