I have been using/repairing the Worktunes Digital muffs for years. The flat cables going between the muffs go bad. The Bilsom Hi-Viz are not digital, but have better stereo separation... and I use these for NASCAR and other sports where I am searching for stations all day. They also have a better cable going between the muffs. I just bought a set of Stanley Sync Digital muffs on Ebay, and they do not sell them anywhere else that I can find. They have the same long battery life as both the Worktunes and the Bilsom's. They seem to have the better cables of the Bilsom... and the pair I got seems to have a great radio front end like the Bilsoms.... but we will see. If so, I will stop buying the Worktunes ... I wear the crip out of these muff type radios... but the taking on and off all day does the most damage to them.