Secure-Fit - In-the-ear designed earbuds not only can fit to your ears and stay in your ears comfortable and perfectly, but also free your ears from fatigue and tangle. No pain for long time use. Suitable for gym, biking, running or regular usage.Magnetic Design - Built-in magnets let you attach the two earbuds together and prevent the earphones from sliding off or cable tangle when not in use, just hang around your neck like a necklace..Enjoy Pure Stereo Sound Music - Latest 14mm speaker drives unit provides a pure, CD-like high quality tone for you. Frequency up to 20-20000 Hz, can reach the high pitch and pick up the bass easily, suitable for most of the music styles..Seamless Wireless Connectivity - Latest Bluetooth v4.2+EDR technology enables quick transmission, low power consumption and seamless music streaming. You can easily move around within 10m (33ft) distance from the paired device.