SP 20 is compatible with leading UC platforms such as Cisco, Avaya and IBM - with a plug-and-play experience
Easy to use, clear microphone mute button, call and volume controls – plus practical and convenient cable management system
Sound-enhancement profile for music lets you take a break between calls to hear music when you want to relax
Sennheiser voice clarity, echo cancellation and dual talk function ensure a cleaner sound and a more natural conversation flow

Frequency response (Microphone): 150–6.800 Hz
(Frequency response: 150–15.000 Hz (Multimedia
Weight: 210 g / 7.35 oz
Charging time: 2 h 30 min
Standby time: Up to 30 hours
Talk time: Up to 20 hours
Speaker type: Dynamic, neodymium magnet
Connection: PC via USB; Tablet and mobile phone via 3.5 mm jack cable
Supported operating systems: Windows and Mac