<ul><li>Magnet helps reduce stress</li><li>Super Bass - Long Battery - High Quality - Imported</li><li>Supports all Blue-tooth Mobiles and Devices Such as Laptop - Mac - Tablets etc</li><li>Can call or answer the phone</li><li>Support voice report number automatically.</li><li>SIGNAL-NOISE RATIO : 85db</li><li>Frequency: 2.4GHz</li><li>Sensitivity: 100db</li><li>Driver Unit: 10 mm</li><li>Bluetooth version: 4.2</li><li>Job scope: 15 meters</li><li>Battery time: upto 5 hours</li><li>Charging time: 1hours</li><li>Frequency response: 20 Hz - 20 KHz</li></ul>