LLLT Handy Rx cold laser device for effective pain relief. Fast and free shipping! Plus 60 days money back guaranteed. Buy today risk-free! Order online or call (660) 264-0737. The Handy Rx is a small, non-invasive handheld device that is specifically designed for the home healthcare market to relieve a wide range of symptoms and treat pain. Handy Rx low level laser therapy (LLLT) combines 4 different types of energies in one product.