Tên sản phẩm: SoundStation 2 Extension Mics with Cables Product Type : Microphone Connectivity Technology : Cable 6 ft Dimensions: 3.5" x 3.4" x 0.87" Packaged Quantity : 2 Microphone Type : Desktop Microphone Controls: Mute Additional Information : - Increases Audio Conference Participants From 15 To Up To 25 - Compatible With: - Polycom SoundStation 2 EX - Polycom SoundStation 2 Avaya 2490