They charge fast. In general the cable frays at the player end, where the cable bends on exit. I?ve owned several pair of Danskos over my career. People coming from ergonomic mice such as Deathadder, ROG Gladius, EC2-A, or EC2-B, this mouse is made for you. Tucks discretely under my couch. Pas de grésillement, ni saturation. I was a little unsure about buying a brand that Ive not heard of before, but a little bit of research on the web about the company & their website reassured me enough to buy, that & the previous good reviews being verified & the fact I would have Amazons guarantee if things to go wrong. Bring on next weeks four hour flight with a toddler! Even though it is told in the instructions book to mount it on cement or concrete i hooked it to the wood behind the drywall. Again, I have it set where I want it and will leave it there.