Plantronics Headset Amplifier, without push-to-talk switch, 10-foot coil cord, 4 wire Features:Un-amplified receiver For Dispatch applications Quick Disconnect (QD) Compatible with Plantronics H style headset tops Product Type: Headset Amplifier Product Type: Headset Amplifier Manufacturer Part Number: SHS1963-01 Manufacturer: Plantronics, Inc Product Model: SHS1963-01 Product Name: SHS1963-01 Headset Amplifier Brand Name: Plantronics Brand Name: Plantronics