DESC: Free from your desk and chair -- even from the confines of your office. Need to get up for a file? Confer with a co-worker? Check with shipping? Youre free to roam with GN Ellipse, so you can do it all -- without putting the caller, or your conversation, on hold. GN Ellipse transmits at 2.4 GHz frequency, offering crystal-clear, interference-free reception, anywhere within 200 feet of the base unit.