Instruction: Answer the given question using the supporting document.

Input:
Question: what is the Plantronics part no?,  they make two that look alike
Document: I have plantronics for the last 3 years and I didn't imagine how more comfortable it will be, it works so good that it make me laugh.
The Plantronics HL10 Handset Lifter was a great addition to the desk of a person with a disibility. This will help a great deal and make live a little easier on the job.
Lots of options for phone types and compatible with many Plantronics wireless headsets. Highly recommended and I take and make over 20 calls a day.
I use this on a daily basis for over 4 years, not once has this unit not worked. Every time I make or receive a call I use my plantronics headset to initialize the device and without fail it lifts the handset and im ready to talk.
No doubt the clever engineers at Plantronics wish the various makes and models of modern office phones were at least enough alike so that a small range of motion would suffice to lift handsets properly. Well, apparently they're NOT enough alike.The Plantronics HL10 can be 'glued' (double-faced sticky tape, provided) anywhere along the side of the phone near the handset. The device has 3 settings, via an easily-accessible button. The three setting adjust how high (through what angle) the lifting lever moves.
!This is a Great Product! I read all the bad reviews and nearly decided on a whole different phone system altogether. The Plantronics HL10 Handset Lifter works very well with my Plantronics CS540 Wireless Headset. It was very easy to install and looks good on my CISCO SPA504G VoIP Phone I received from VoIP Your Life. Although the three cords do not look bad , I chose to use 7 inches of black Techflex CCP1.00BK Flexo Clean Cut 1-Inch Braided Cable Sleeve to clean up the installation.
Works great. Is a cheap way to deal with outdated receivers that have limited HDMI ports. I own two of these.
Glad the item is sold separately. I had purchased on the headset not realizing the lifter was not part of the package.
I gave this to my wife, as a gift. She works from home, for the most part, and is able to answer the phone without having to run to her office. Brownie points!
I was missing this part for my phone and never had a chance to use it until now. I could not be any happier that now my wireless is connected to my business phone and cell phone and I'm currently making maximum use of the entire system. Highly recommend!
Answer: Roger, What is pictured is the Plantronics HL10 lifter which enables remote call answering.  The Plantronics part number is 60961-32.  If you are looking for a headset system with the HL10 I would highly suggest the Plantronics CS 50 which is part number 63120-20.  I purchase these for our call centers and I have never had a complaint.  I hope that answered your question.Cheers