Using 2.4G dual-mode transmission, there is no delay in the live broadcast mode. Wireless live broadcast in Bluetooth mode allows you to listen to music and do leisure sports, which is simple and convenient. No hassle of cables, to complicated headphone pairing, you can connect multiple wireless headsets. The air conduction design directly conducts sound to the ears without blocking the ears. It is suitable for live broadcast types such as talent performances, sports teaching, etc. The supporting force ensures that the earphones not fall off, the ears not hurt, and the appropriate fit not cause uncomfortable pressure. The sound hole and leak hole of the earphones are made of 200-mesh waterproof mesh to prevent splashing and sweat; the connection points of all parts of the cavity are completely sealed by silicone. Wireless transmission: 2.4G/Bluetooth 5.1 Speaker type: air conduction Frequency response range: 20Hz~20KHz Charging interface: magnetic Play time: 6 hours Waterproof and dustproof: IPX5 Wireless transmission: ≤30m Bluetooth distance: ≤10m Material: plastic colour: black Package Contents: 1 x Headset 1 x Charging Cable 1 x Receiver Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.