This sound card that supports mobile phone OTG and computer USB digital connection has the following features:1. Compatible with multiple platforms: the sound card supports mobile phone OTG and computer USB digital connection, and is compatible with a variety of devices, including mobile phones, tablets and desktop computers. Whether you're doing mobile recording or computer audio processing, it's easy to connect and operate with this sound card.2. Digital connection: The sound card adopts digital connection mode, through OTG or USB connection, which can realize high-quality digital audio transmission and processing. The digital connection has lower noise and more accurate audio signal transmission, providing clearer and more precise audio effects.3. 48V power supply: The sound card supports 48V power supply, which is suitable for scenarios where devices such as condenser microphones need to be connected. The 48V power supply can provide the required power for professional-grade microphones, ensuring high-fidelity and sound quality recordings.4. Real-time monitoring: The sound card has a real-time monitoring function, and the effect of recording or audio processing can be listened to in real time through headphones or monitors. This allows you to make adjustments and monitor in real time to make sure your recording or performance with effects is looking the way you want.5. Portable and convenient: The sound card is portable, small and easy to carry. It can be carried with you and used anytime, anywhere, convenient and fast.The sound card that supports mobile phone OTG and computer USB digital connection has the characteristics of multi-platform compatibility, digital connection, 48V power supply, real-time monitoring and portability. You can conveniently perform audio processing, recording and performance, and enjoy a high-quality audio experience. Whether you are a professional, a music lover or an individual user who needs to record on the go, you can all get the convenience and practicality from this sound card.