Parameters: Dimension: 85mm x 54mm x 7mm Recording time: About 40 hours Voice Activated working time: 120 hours Recording Formats: WAV Voice Activated: Yes Date and Time Stamp: Yes Battery: Li-ion battery 600maH Operating System: Windows XP/Vista/Win 7/8/Lunix OS / MAC OS Recording Bitrate: 128K bps USB Port: USB 2.0 Frequency Response: 20Hz-20KHz Max Audio Output Power: 5mW Working Temperature: 0 ~ 40&deg;C Package Content: 1 x 32GB VIPcard recorder 1 x Earphone 1 x USB cable 1 x User Manual<img data-srcid="-" src="https://image.doba.com/dgd1-aAvKiTnifPVe/vr11-vip-card-voice-activated-hidden-card-audio-voice-recorder-built-in-32gb.jpg" alt="dropship VR11 VIP Card Voice Activated Hidden Card Audio Voice Recorder built in 32GB" /><img data-srcid="-" src="https://image.doba.com/dgd1-fFVZiTEvtPbY/vr11-vip-card-voice-activated-hidden-card-audio-voice-recorder-built-in-32gb.jpg" alt="dropship VR11 VIP Card Voice Activated Hidden Card Audio Voice Recorder built in 32GB" /><img data-srcid="-" src="https://image.doba.com/dgd1-afDehZnvtJqY/vr11-vip-card-voice-activated-hidden-card-audio-voice-recorder-built-in-32gb.jpg" alt="dropship VR11 VIP Card Voice Activated Hidden Card Audio Voice Recorder built in 32GB" /><img data-srcid="-" src="https://image.doba.com/dgd1-ZJVhyfGcaPqQ/vr11-vip-card-voice-activated-hidden-card-audio-voice-recorder-built-in-32gb.jpg" alt="dropship VR11 VIP Card Voice Activated Hidden Card Audio Voice Recorder built in 32GB" />&nbsp;