Stream music from your smartphone, tablet, or any Bluetooth enabled device or take a call mid-playlist. 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: approximately 16 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 (350mAh). Bluetooth operating distance of up to 30 feet. EVA molded storage case included for added protection when not in use. EVA molded storage case dimensions: 7.5L 6H 3.5W. Bluetooth: QDID 111599 and Declaration ID D047841