The Hatsan TactAir Spark Power Supply (12V) is a versatile and efficient power solution designed to enhance the performance of your Eotech NV binoculars. This optional battery pack allows for improved functionality by enabling the use of 3 AA batteries instead of a single AA battery ensuring extended operation and reliability. The remote system can be easily attached to the BinoNV providing a seamless integration with your existing equipment. With a nominal voltage of 120V AC the Hatsan USA HA91006 TactAir Spark Power Supply offers a robust and dependable power source for your outdoor adventures.