Item Type: Voice Recorder_x000D_ Material: ABS_x000D_ SNR: 90dB_x000D_ Support System: for Windows 98 ME 2K XP, for WIN7 8 10, for Linux 6.2, for OS X 10_x000D_ Built in Polymer Lithium Battery: 100mAh1HD LOSSLESS: Mini recorder offers the most responsive and lossless recording quality of any recording compared to other similar recorders. 2CONVENIENCE: Portability is definitely the key part of this recorder, which weighs less than half an ounce and measures only as big as a USB drive. 3DUAL USE: USB digital recorder can be used for two purposes in one, both as a U disk and a recorder, small size plays a big role, suitable for carrying around and using. 4CONCEALMENT: USB recorder design is small and concealed, convenient for you to forensics on different situations, suitable for concealment work environment, sometimes can play a huge role. 5VERSATILE: You can use it as a conference recording device, a speech recorder, or even a monitor, and recording is as simple as pressing a button and it starts working. 1 x VoiceRecorder 1 x Instruction Manual