1.[Open-Ear Headphones] Open-ear Bluetooth headsets do not need to be placed in or over your ears, avoiding the wearing discomfort associated with in-ear and over-ear headphones. The open-ear design keeps the inside of your ear canal clean without harming your eardrums, which ensures that your ears remain open to your surroundings for maximum situational awareness, and connectivity. 2.[Bluetooth 5.3 & Clear Call] The Open-ear headphones with microphone are equipped with Bluetooth 5.3 chip for more stable connection, faster transmission speed and stronger signal. Mic with environmental noise reduction technology work together to monitor the sounds around you and instantly produce an opposite signal to reduce background noise, allowing you to hear crystal clear calls like you are communicating face to face with others. 3.[270°Rotating Noise Cancelling Mic]This Bluetooth headset for phone calls comes with a noise-canceling microphone. The flexible microphone can be rotated 270° to adjust the microphone to the position to pick up your voice better, ensuring that callers can hear you clearly and improving call quality. 4.[Comfortable and Design]Bone Condution headphones with boom mic are so light only 1.2 oz that you'll forget they're there after wearing them for so long. The body can be adjusted to different angles by 360° bending, wireless without restraint, skin-friendly and non-allergic silicone material is more comfortable to wear. XM-X3 Air-bone Conduction headphones with mic make you a burden- wearing. 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.