BOTH DISCONTINUED! Product SD Pro1 / SD Pro1 ML Catalog SD Pro1 – 2145 SD Pro1 ML – 2214 P/N SD Pro1 – 506007 SD Pro1 ML – 506010 Warranty 2 years Compat Check Compat Guide, use ML for Lync users Description Different shaped base than DW Pro2, all the same features Set-Up Instructions See HDSA # 1613 Manufacturer Sennheiser Manufactured in Unknown Type Wireless Wearing Style Reversible monaural headset Range Distance 400ft max Weight 2.3oz Microphone Ultra noise-canceling Earpiece Leatherette ear cushion Color Black Special Tech ActiveGard; ML version is Microsoft Lync certified Battery Life Up to 12 hrs talk time, 100 hrs standby Reversible Yes Lifter Compatible Yes Busy Light Compat Yes Connections RJ45 (headset base) to RJ9 (phone’s headset/handset jack) DC Adapter Compat Yes Digital Encryption Yes What's in the box? Headset (w/ nameplate), base station, power supply, USB cable, audio phone cable, QuickGuide, CD w Manual, QuickGuide, nampeplate template and HeadSetup, safety guide