ET-152 Headset Telephone (430-0890) Features Faxback Doc. # 17171 The Radio Shack ET-152 Headset Telephone is a telephone headset and dialer that connects to the telephone line in place of a telephone. The ET-152's long headset cable lets you move freely while you talk on the phone, and the adjustable microphone boom swings back and forth so you can wear the headset over either ear. Its features include: Quick-Disconnect Plug - lets you disconnect the headset from the dialer without disconnecting the call, so you can step away from the phone without removing the headset. You can return to the conversation by simply reconnecting the headset. Lapel Clip - lets you securely anchor the headset's modular cord to your clothing to prevent the headset from slipping. Studio-Quality Electret - provides clear transmission of your voice. Condenser Microphone Adjustable Volume - gives you full control of the volume. Touch Tone or Pulse - lets you use the ET-152 with either type of (Rotary) Dialing telephone service. Hold Button - lets you put a call on hold. FlasH Button - sends a timed electronic switchhook signal for use with specialized telephone services, such as call waiting. Ringer OFF/ON Switch - lets you turn the ringer on or off. Last Number Redial - lets you automatically redial the last number dialed with the touch of a button. Hearing-Aid Compatible - lets you use the ET-152 with hearing aids that have a T (telephone) switch.