Patlite’s MP3 Smart Alert systems use the latest in voice and alarm technology and are specifically designed to attract the attention needed in noisy or hectic situations with a loud, yet clear audible command or alarm. There are various models available, from the BSV series that measures 75 mm square and puts out 87 dB at 1 m to the EHS series horn that delivers 110 dB at 1 m. The FV-127JP has a recording capability of 4 hours and 127 channels.