◆ Dual Earmuff Noise Cancelling Headset
◆ Universal 5-pin cable connector port
◆ Quick release cable port, for easily attaching cables for any 2-way radio or Sprint/ Nextel phone
◆ Build-in-earshell push to talk (PTT) button, volume control available
◆ Noise-cancelling Electret Microphone
◆ Noise Reduction Rating (NRR): 24dB
◆ Auxiliary 3.5mm audio input