fidelity wireless audio with LDAC and AAC codecs for CDquality stereo playback. Bluetooth 5.0 delivers improved transmission efficiency, greater stability, and ultralow power consumption for longer use. 3D surround sound mode activated by the 3D button, enabling immersive surround audio from regular sound sources. Builtin microphone for hands calling and clear voice capture. Continuous streaming and automatic repairing with existing paired devices. 300 mAh quality polymer battery provides up to 12 hours of use, and charging while streaming is supported. Compatible with mobile phones, tablets and headphones, with support for music storage. Key performance notes: smooth wireless performance, reliable autoreconnect, and easy access to quality audio codecs. Usage scenarios Daily commuting or travel: enjoy quality wireless audio with LDAC, long battery life, and hands calls on the go. Home entertainment or gaming: low latency Bluetooth 5.0 improves video and game lipsync, while the 3D mode adds immersive sound to regular content. Work meetings and calls: clear hands calling with the integrated microphone, plus automatic repairing for quick reconnect after short interruptions.