Broad compatibility, fast and reliable transmission, lower latency, and an upgraded BT5.0 chip. Omnidirectional sound technology, which uses a metal composite diaphragm, guarantees HiFi sound quality, rich middle, powerful bass, dazzling treble, and balanced sound diffusion. It is lightweight, portable, and comes with a lanyard, making it convenient to use whenever you choose. Features include a built-in microphone, advanced noise reduction, and instantaneous, bright, and clear sound. An integrated 1800mAh lithium battery that is dependable, safe, and long-lasting. Minimal Power Use 360-degree Complete Frequency Audio Strong Bass HD Voice Broadcasting for Calls