The Plantronics CS540 is a wireless ear-hook headset with a single earpiece. It uses Bluetooth technology and has a black color. The headset has call functions, a microphone mute button, volume control, noise cancellation, detachable cable, wireless charging, and a built-in microphone. It also has a 6ft cable length and can connect via USB and 3.5mm jack. The model was manufactured in the 2010s.

Base, power, headset with the rubber in ear piece.

Working.

No returns.