Magnetic buds for easy carrying Each earbud has a built-in magnet for tangle-free carrying and storage Comfortable, versatile and practical, the WI-C200 wireless in-ear headphones will fit seamlessly and stylishly into your life. With a 15-hour battery life for longer listening, 9mm driver units for clear sound and lightweight design for maximum comfort, these are the perfect pair of wireless headphones. Wireless audio with BLUETOOTH® technology Up to 15 hours of battery life 9mm driver units for crisp, clear sound Flexible and lightweight cables Hands-free calling and voice assistant compatible DRIVER UNIT 9mm FREQUENCY RESPONSE(BLUETOOTH® COMMUNICATION) 20Hz - 20,000Hz (44.1kHz Sampling) NFC No