Explore Pure Sound Enjoy the Sound of Nature: The strength school with high appearance value all-inclusive design, no sound leakage Immersive experience with music Shocking Bass 40mm Sound Generating Unit: High fidelity audio quality, stable audio output power strong sound, clear detail, and high restoration Used in various game boxes with different music styles Upgrade Bluetooth 5.1 Faster and More Stable Connection: Lower power consumption for more stable audio transmission More auditory experience Multiple Playback Modes: Meet the daily needs of various playback modes and listen as you want Round Lug Design Soft and Comfortable to Wear: Ergonomic design, filled with adaptive three-dimensional cotton which can adapt to the contour Wear it for a long time without discomfort Specifications: Item number: L750 Horn diameter: 40 mm rubidium iron boron dynamic horn Power capacity: 400mAh Bluetooth solution: JL 5.1 How to use: Bluetooth and 3.5mm interface and TF card (Not Included) Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.