Stream music from your smartphone, tablet, or any Bluetooth enabled device or take a call mid-playlist. Integrated LED back light in each headphone has a multi-function mode: 7-color LED automatically change colors; light will glow with "breathing light effect". Integrated buttons allow you to answer calls through the headset, adjust volume and skip music tracks. Passive Noise Cancellation reduces unwanted noise without sacrificing sound quality. Plastic covered earpieces and headband allow multiple areas for pad printing. Compact folding mechanism allows for easy pack-ability. Charging time: approximately 2 hours. Playback time is approximately 6 hours. Auxiliary 3.5mm cable included for optional, non-Bluetooth plug-in capability. Built-in lithium battery can be charged with the included micro USB cable. Bluetooth operating distance of up to 30 feet. Drawstring storage pouch and gift box included.