Specification: <1>Types of Battery Holder: ER14250 battery holder, 3.6V 1/2AA battery holder with lead wires <2>Voltage Output: 3.6V, 1 x 3.6V 14250 battery loaded in 14250 battery holder <3>Dimensions of 14250 Battery Holder: (L*W*H)/1.38" x 0.71" x 0.63"/3.5cm x 1.8cm x 1.6cm <4>Leads: all 1/2AA battery case box with leads, they are tinned wire end <5>Wires Length: 5.9"/15cm <6>Wires Diameter(count in the PVC isolation around the wire): 0.0393"/1mm <7>Wires Color: red and black, the red cable contact the positive side of the 14250 3.6V battery case, and the black cable contact the negative side of the 3.6V 14250 battery case. <8>Box Color: black <9>Material: plastic ABS <10>Weight: 0.11oz/3.3g <11>If 3.6V Battery Box has ON/OFF Switch: no <12>If 3.6V Battery Box has Cover: no Package Contents: 2x 3.6v 1/2AA(14250) battery holder with wires