The device, HEINE® 3S LED headlight comes with the mPack UNPLUGGED. This headband is transportable without the worry of the cable or the cord connections. The headband battery is rechargeable with no cable connections. It is comfortable because of its light weight and the balanced weight distribution. There is a display to show the charge status of the device for the remaining operating time. It can work as a substitute of mains power supply even in the charge mode. The full charging of the battery happens within 2 hours and runs for more than 5 hours. The device has undergone the integrated charge and performance checks when it is operated. It is developed on the basis of the Lithium polymer technology for the top level of safety.