Features: Powered by DC12V car battery,12V power adapter and more 12V adapters Durable ball bearing with high air volumn 6500rpm big wind and reliable safety Setting up fire quickly, helping you make barbecue more easily for barbecue stove. Plug&play-Widely used for BBQ stove, AVcabinet, wood stove, outdoor firewood stove, etc. 2 Wires connection.Red wire is positive pole, black wire is negative pole with stainless steel air duct. Specifications: Output: for DC12V 2.94A Fan Size: approx 9.7x9.7x3.3cm/3.82xx3.82x1.3in Speed: 6500RPM Optional Air Duct Length: approx 10(3.94in)/ 17cm (6.69in) Air Duct Size: approx:28mm(1.1in) Note: Due to the difference of different monitors, the picture may not reflect the actual color of the item. Thanks! Due to manual measurement, please allow error of 0-1cm. Please make sure you do not mind before bidding. Only the cooling fan, does not include other accessories in the picture. Package includes: 1 Set x Air Blower