Wireless Neckband In-Ear Digital Noise Cancelling Headphones lets you listen without distractions -Supports Ambient Sound Mode to hear essential ambient sounds -Compact 6mm drivers keep the earphones small, for a comfortable fit, MAGNET: Neodymium -The Digital Sound Enhancement Engine (DSEE) faithfully restores headphones to produce a high-quality sound that?s closer to the original recording -Silicon neckband for all-day wear and easy carrying, FREQUENCY RESPONSE (BLUETOOTH COMMUNICATION): 20 Hz?20,000 Hz (44.1 kHz Sampling) -Magnetic Earbuds for tidy stowaway – When you?re done listening, the magnetic ear-buds help avoid tangles. -Battery life up to 6.5hrs with Noise Cancellation and 7.5 without Noise Cancellation