The noise isolation gel earbuds create a comfortable acoustic seal inside your ear to block outside noise maximize sound quality and enhance your listening pleasure.With patented audio-optic technology with lights that flash to the sound output of any device with a 3.5mm headphone jack.The brightness of the flashing lights is controlled by the volume level of your music device.LED lights can be turned on or off when listening to your music.White Earbuds with Flashing Blue LEDsPatented LED Lighting Technology with Bass Boost and Noise Isolations3 sizes of ear gelsLithium ION Rechargeable Battery with 30 hours of continuous play and 28 day standby between charges.