This pack is absolutely brilliant, I'm so glad I bought it. Electro is such an amazing sensation, I have become totally addicted! The control on the pack is superb, with several patterns to play with. Combine that with various electrode placements, and there is a great variety of stimulation possible. The pads can be stuck on your bits as long as there is no hair - they are reusable but do wear out over time and will need replacing. The loops need to be used with electro-gel or water-based lube to ensure good conductivity. It took me a bit of training to be able to take the plug anally, but worth it in the end - it totally blew me away. I recommend doing some research online to learn how to use electro first. And always have a spare battery to hand - running out of power mid-session is really dull.