[TRUE HD HI-FI SOUND] : Using latest Bluetooth 4.1 technology and state of the art acoustic components which produce incredible sound quality with deep bass and crystal clear sound. [COMFORTABLE FIT WITH IPX WATER RESISTANCE] : RayCon E17s feature Ergonomically designed flexible ear buds with gel flex silicone earbuds to ensure your headphones stay comfortably firm in place to guarantee fatigue free ears and tangle free comfort. [AMAZING BATTERY LIFE] : With new and improved lithium polymer battery allows seamless enjoyment of music for up to 8 hours and 240 hours stand-by with a quick charge of only 1.5 hours.

Noise isolating in-ear design with energetic sound and enhanced bass Patented ergonomic earpiece design and certified IPX5 sweat-proof headphones provides long-term wearing comfort In-ear Headphones For iPhone iPod Ipad Androids Smartphone MP3/MP4 Player, Portable Musics Player, Computer, Laptop, Tablet Devices etc.