The Belkin Secure Headset Adapter is the only solution available today that enables the use of analog audio devices in a secure environment. It is the perfect security solution where classified sensitive discussions are held in an environment where computers are present. Product Type: Headset switch Intended for: Headset Product Material: ABS plastic Dimensions (WxDxH): 2.2 in x 3.8 in x 0.8 in Weight: 3.53 oz Manufacturer Warranty: 3 years warranty Product Type: Headset switch Intended for: Headset Product Material: ABS plastic Width: 2.2 in Depth: 3.8 in Height: 0.8 in Weight: 3.53 oz Connections: 2 x microphone - mini-phone 3.5 mm Headphones - mini-phone stereo 3.5 mm Audio line-in - mini-phone stereo 3.5 mm Service & Support: 3 years warranty Service & Support Details: 3 years