Specification: Item Type: Mini USB Microphone_x000D_Model: Hy-302_x000D_Material: ABS_x000D_Product Color: As Pictures Shown _x000D_Product Weight: Approx. 69g_x000D_Sensitivity: -58 db + 1 db_x000D_Impedance: 2.2K_x000D_Operating voltage: 2V Features: 1It is suitable for full?speed operation in compliance with USB2.0 and compliance with USB audio device category specifications. 2The microphone application that supports the USB suspend/resume mode 48KHZ recording sampling rate, in the recording only mode, the sampling rate is 8KHZ, 11.025KHZ, 22.05KH2, 44.1KHZ and 48KHZ. 3Support +20db microphone enhancement (enabled by default) declared as for AGC, used for default USB audio driver control. 4Compatible with for Win 2000/Win XP/Win 7 /OS X, no additional driver is required. 5The mini usb microphone is made of high quality ABS material, compact, easy to carry and store. PackageList: 1 x USBMicrophone 1 x Protective Guard