[9D Surround Sound]: Using upgraded dynamic coil speakers to enhance the sense of depth, presence and space, and present a three-dimensional surround effect like a live scene. [Lightweight & Comfortable]: Follow the ergonomic shape conscept, all-in-one design, fit the cochlea, let the headset wear firmly, and experience long-term stable and comfortable wearing, easy to carry. [Pick Up Power On Automatic Pairing]: Smart touch operation, remove the headset from the storage box.the headset will automatically turn on and automatically pair, no operation is required, easy and fast to use. [LED Power Display]: Intelligent LED digital display, charge and discharge instructions, more intuitive prediction of battery life. [Flashlight Design]: With a large-capacity battery, the traditional design of an emergency flashlight is overturned. Specification: Bluetooth model: m18 Bluetooth headset Bluetooth version: 5.1 Headphone speaker: φ8mm Headphone battery capacity: 50MAH Tra