Composite large diaphragm speaker Unlock HD sound quality Large dynamic speakers bring you an immersive sound effect Higher compatibility and reduced distortion. 360° stereo surround Shocking sound effects HIFI HD sound quality Environmental immersion noise reduction Comfortable listening No loss of sound quality, say goodbye to the hustle and bustle, and start a journey of pleasure and enjoyment. HD voice calls Communication is more convenient The Bluetooth 5.3 technology gives you a brand environmental experience Effectively reduce noise and double the effectiveness of work. audio sync Low latency gaming experience Achieve low latency for wireless audio transmission During , you can hear the sound and identify the position, which is smooth and stable, and there will be no disconnection. Super battery life Listen to music continuously for 8 hours and comfortable Painless to wear Name: Head-mounted Bluetooth wireless headset Bluetooth version: 5.3 Wireless distance: 10 meters Charging time: 2 hours Playback mode: Bluetooth/plug-in/card Standby time: 200 hours Colour:B: Temperament Skin Material:Plastic Package Contents: 1x earphone 1x Charging cable 1x audio cable 1x Chinese and English manual 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.