Vipin Kumar

Sir/Madam I have purchased 9 mukhi rudrakasha, one of my friend told me that you wear9 mukhi rudrakasha in right hand (upper elbow part) but it is very difficult to wear. My question is that can i wear it in my neck. Is there any differenct to wear rudrakasha in hand or neck. What is the benefits of 9 mukhi rudraksha. Thank's Vipin Kumar