A spy voice recorder is very useful when you need to discreetly record any conversation either at a moment’s notice or planned in advance. These devices are designed to be extremely unassuming and practical, usually disguised as a variety of everyday objects. Packed with a concealed microphone, a voice-activated spy recorder simply starts recording whenever sound is detected. If there's someone speaking, it immediately terminates its standby mode and it tapes what's being said. The telephone recorder is an easy-to-use stand-alone telephone recording system that automatically records your telephone conversations. These conversations are stored internally on a removable sd card. It is both battery and ac-adapter-powered and does not need to be connected to any other devices to record. Monitor personal and business calls, and keep recordings of every single call you make. Comes with 3.5Mm earphone port, listen through the earphone to avoid disclosure of privacy. Manage recordings in real-time, record and playback calls directly from this device. Automatically overwrites earliest recorded phone calls to make space for new recordings.