Scope of application: The suitable aperture of the lens holder is 1CM, and the suitable aperture of the faucet is 2.2CMApplicable models: DC12V motorcycleThe USB port of the product has a high-quality soft rubber cover, which is waterproof and dustproofThere is a compass on the top of the product to point you to the way forwardEquipped with two mounting brackets for handlebars and rearview mirrors to meet your different installation needsProduct name: Compass chargerInput voltage: 9-24VOutput parameter: 5V/2.5Asize:45mm in diameterMaterial:ABScolour:BlackPackage Contents:1 x charger1 x Faucet bracket1 x Mirror holderOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.