Black Vox is a professional grade covert voice activated recorder with a super long 75 day standby battery life 72 hours of active recording 8 GB of internal storage that can store up to 288 hours of recordings and powerful magnets that allow it to be hidden under car seats or other under cover places. These exceptional endurance features set it apart from other spy voice recorders. This high tech surveillance equipment is charged through the 2.5mm jack to USB cord that is included by plugging it into your computer or laptop or a USB wall charger. High quality voice recording from up to 28 feet away means you can capture every conversation making it a perfect stand-alone audio recording solution for rooms inside vehicles or just about anywhere. The External Mic version has a 3 foot extended mic for covert deployment. The unit can be hidden away from sight and the microphone can be placed in an optimal position to capture conversations. The extended mic is small enough it can be inserted under a door or through small holes enabling listening in a separate room. The possibilities of deploying the Black Vox and Black Vox Extended Mic versions are nearly endless. The Black Vox gives you the option to set the time stamp on the recordings to your local time using a Windows computer. Easily listen to or transfer recordings form the 8 GB of internal storage through USB 75 Day Standby Battery Life - Rechargeable internal battery means your recorder can be in standby mode for 75 days and recording time of up to 72 hours 288 Hours of Digital Voice Recording Capacity with an Internal 8 GB Drive - Recordings are saved as MP3 files on the recorder: plug into a computer to listen to copy or delete recordings Voice Activated Audio Recording from up to 28 Feet Away - High quality mic allows for clear conversation recordings from far away USB for Easy Use with Windows or Mac - 2.5mm jack to USB for charging or data transfer Magnetic for Easy Placement Under Car Seats or Nearly Any Location - Designed as a sophisticated covert surveillance tool External Mic version has a 3 foot extended microphone for even more options for covert deployments