1- 10AA DC female connector 2.1mm common for cctv cameras and mics

2.1mm center positive Battery Holder 12v DC which runs a 120ma camera, & 30ma mic for up to 18hrs.

BATTERIES NOT INCLUDED

USING 10 DURACELLS 1.5 VOLT= 14.4V DC

USING 10 RECHARGEABLE BATTERIES 1.25 VOLTS = 12V DC

Works great for many portable devices requiring 12v power for ex: wireless tx rx, gps, web tablets, & fish finders.