Supports AAC advanced codec and music storage, compatible with mobile phones, tablets and headphones. 3D surround sound function: press the 3D button to switch to 3D and enjoy immersive surround sound from regular audio sources. Integrated microphone enables hands calling. Continuous streaming and automatic repairing: builtin 300 mAh polymer battery delivers up to 12 hours of use. Supports charging and streaming at the same time and automatically repairs with existing paired devices. LDAC and low latency support for CDquality stereo streaming. Uses the latest Bluetooth 5.0 for improved transmission efficiency, stable connections, and ultralow power consumption. Use scenarios Daily commuting or travel: pair with a smartphone or tablet to enjoy fidelity audio with long battery life and easy reconnection after device changes. Home entertainment and video viewing: enable 3D surround sound for a more immersive listening experience from standard sources with low latency streaming. Office calls and remote work: use the integrated microphone for clear hands conversations while maintaining a stable wireless connection.