Bluetooth version 5.0 for improved transmission efficiency, stability and ultralow power consumption. Supports AAC advanced codec and music storage; suitable for use with mobile phones, tablets and headphones. 3D surround sound function: with the 3D button, switch to 3D and enjoy surround sound from regular sound sources. Integrated microphone for hands calling. Continuous streaming and automatic repairing: 300 mAh quality polymer battery provides up to 12 hours of use time; supports charging and streaming at the same time; automatically repairs with existing paired devices. LDAC support and low latency, with CDquality stereo streaming. Use scenarios On the go: enjoy music with improved stability and long battery life during commutes or travel; take advantage of 3D surround sound for a more immersive listening experience. Hands communication: use the integrated microphone for calls at work or home, with automatic repairing ensuring quick reconnection to your paired devices. Home entertainment: watch videos or stream content on tablets or phones with low latency and fidelity stereo streaming for clearer audio alignment with onscreen action.