Jabra AT3M Plug Prong Telephone Amplifier with Mute

Specifications:

• A2DP for music playing: No. This device does not support Advanced Audio Distribution Profile (A2DP)
• Auto Pairing: No. This device does not support Auto Pairing
• Digital Signal Processing: No. This device does not utilize DSP (Digital Signal Processing)
• Usage: Works with traditional desk phones. Connects to a PC and can be used to stream music/sound and for voice calls
• Digital Signal Processing: No. This device does not utilize DSP (Digital Signal Processing)
• Microphone Mute Function: Yes. Mute gives you the option to mute/unmute the microphone directly on the device
• Jabra Direct: No. 
• Setup Display: No.