Lifetime warranty! No more replacing inexpensive pull-string monitors! Our policy is simple: if you break it, we replace it - FREE! Unbreakable It lasts! The virtually indestructible protective cover won't tear and will stop the monitor from breaking when dropped. Designed because many facilities still like the simplicity of a pull-string but hate having to replace them all the time. Locking Mounting Strap The integrated, locking mounting strap easily and securely mounts to chair backs Features: Affordable. Magnet alarm automatically resets when magnet is replaced. Thick, impact resistant foam cover.