I am Suresh kumar, (Free Teaching Embedded Systems).
I am going to giving an Idea to you for marketing.
Please subscribe a channel in youtube.
That is "Unbox Therapy" watch some videos.
They are opening some new gadgets. and also see the subscribers of that channel. It is really cool.
6,095,734 subscribers • 844,459,842 views
So Please send your product(one piece enough) to them and they will unbox your product and explain about the products well. So this is going to reach all the subscribers.
Here is the link.
I think It will increase your sales.
(Free Teaching Embedded Systems).