Check the listing for details. Goggle Defogger. Condition: New. Listed at 25.00 USD. New Tactical vest cooling fan. 6-12V 0.10A with a mini Tamiya battery connector. Heavy duty velcro to secure it to your tactical vest. Suggest wearing a patch over the front of it to protect it. 3in x 2in x 1.29in in size 2ft cord These powerful fans will cool you off and defogg your goggles. Battery and velcro patch not included.