• CVC 6.0 Noise Cancelling: Noise-cancelling technology are fully integrated in each earpiece, which reduce external noises intelligently and efficiently and then let your every phone call become continuously and clearly even in loud environment.
• Bluetooth 4.1 Technology: Support more stable Bluetooth signal when you work out, and the working distance is up to 10m.
• Cool Appearance Design: Fashionable swallow's stylish outlook and comfortable design give you a perfect experience.
• Long-Lasting Playtime: Up to 7 hours of talk/ music time, 150 hours standby with a single charge so that you can enjoy long-time music and charge with less time.
• Tough Earphone wire: Special materials can reduce wire twisting effectively and make the wire very tough and endurable.