Features:  <br />1. High Quality Bluetooth Version 4.0+EDR. <br />2. Unique neck-strap design for easy carrying・ Ultra-light weight for all day comfort. <br />3. Vibration alert on call・ Earphone battery display on smartphone. <br />4. Easy magnetic earphone storage・ Noise reduction & Echo cancellation. <br />5. Compatible with All Bluetooth-enabled smart phones laptops MP3 / 4 Etc. <br /><br />