Check the listing for details. plantronics s12 telephone headset Assembly 65219-01 (T).... Color: Black, Condition: New. Listed at 25.95 USD. Enhance your telephone experience with the Plantronics S12 Telephone Headset Assembly 65219-01 (T). This headset is designed with a comfortable ear-hook and ear-cup for extended use. The single earpiece provides clear and precise sound, while the 2.5mm jack connectivity ensures compatibility with most phones. The sleek black color adds a touch of style to your work or home telephone. The Plantronics S12 Telephone Headset Assembly is perfect for those who value comfort and clarity in their telephone conversations. The ear-hook and ear-cup design provide a secure and comfortable fit for extended use. The single earpiece ensures that you can focus on your conversation without any distractions. The 2.5mm jack connectivity ensures that you can use this headset with most phones.