
Please retain your sales receipt (or your warranty certificate) as proof of purchase. The warranty period begins on the date of purchase of brand new, unused products by the first end user. The limited warranty applies only to products that belong to the time of purchase to the current Sennheiser sales program. For the exact duration of your warranty, please refer to the separate extended warranty table. For some products a different warranty period applies. Please use the Product Authenticity Portal to ensure you are buying a genuine Sennheiser product.The original Sennheiser product you have purchased is covered by a warranty of 24 months. As non-authorized dealers change business names and operations on a daily basis, this list of non-authorized is not all-inclusive. If you have already purchased a product you can check it's authenticity by using the Product Authenticity Portal located on our website: We maintain a list of NON-authorized dealers at the following link: (Please do not buy from these dealers as they may be selling counterfeit products and any products they sell will not be covered under Sennheiser's warranty. How do I check the authenticity of my product? The most important way to ensure product authenticity is to always buy from an authorized dealer. Video should be smaller than 600mb/5 minutes.You can only upload a photo or a video.You can only upload a photo (png, jpg, jpeg) or a video (3gp, 3gpp, mp4, mov, avi, mpg, mpeg, rm).You can only upload videos smaller than 600MB.You can only upload photos smaller than 5 MB.Where is the serial number on Sennheiser pc 350 headphones? Tell me how i would be able to locate the serial number for the sennheiser pc 350. Help me Find Sennheiser Serial number Subscribe Search This Thread. Both are black and PX100II and both look exactly the same I have both box here and there is a serial number sticker on them and one with the price tag so i know which one i bought in the store but i find no serial number on the headphones itself i checked the driver lightly but could not see any.
