Slendertone is designed to be portable so this is ideal for travel, however unfortunately due to the very strict security requirements set by airports, you will need to pack this in your main luggage to avoid this being confiscated.
NO!
you can
Provided they do not exceed the cabinet weight and size limit, in theory yes, speakers can be taken on a plane in hand luggage.
yes
Checked luggage is that which has been checked in: weighed, labelled, and taken away to be loaded onto the plane. You don't see it again until you have landed at the other end and the plane is unloaded. Hand luggage is that which you can take onto the plane with you and have access to during the flight.
Yes you can. No problem.
Yes, you can take a PC on a plane as carry-on luggage.
Yes, you can take deodorant in your checked luggage on a plane.
Yes, you can take your computer on a plane as carry-on luggage.
Viagra is a medication that is prescribed by many doctors. Therefore, it can be taken on a plane. It can be taken in the suitcase or carry on luggage.
Yes, you can take DVDs in your carry-on luggage when flying on a plane.
Yes, you can take CDs in your carry-on luggage when flying on a plane.