The Yamaha YAS 203 Cyber Monday is the top product in what the company call Front Virtual Surround Systems. It comprises a Soundbar and Wireless Subwoofer with simple audio connections, IR flasher technology and virtual surround modes. It is available in black or white finishes. This system sits below the Yamaha sound projector Soundbars in their range and doesn't employ that technology here. Instead this is a straight forward normal audio system.
 

The video lectures for audit for CA Intermediate | CA IPCC can be found on CAKART and also on many other websites which offer CA material. The demo classes are free, the rest you have to purchase. But purchasing these lectures are not a tough task and they are available at the least price. If you want these lectures, then you should purchase these lectures. They get delivered to you in a dvd or pen drive. You should watch demo before purchasing and see if you are able to understand the speaker completely and only then purchase. You can instead go for reference books if you can understand the topics by reading as the topics are explained in detail in the reference books and are less costly then the video lectures. It is your choice that what you want. Best of Luck for the Studies.