Check the listing for details. Kustom Signals Automatic Audio VHF Transmitter & Receiver for Dash Cameras. Condition: New – Open box. Listed at 29.95 USD. This is a set of Kustom Signals "Automatic Audio" components. These are normally used by law enforcement for recording audio during traffic stops and more.All components are in excellent shape and it does not look like anything was used. Both units properly power on and audio is transmitted properly. Each unit requires a single 9-volt battery for operation (batteries not included).It comes with a cable to interface it with Kustom Signals Dash Camera, Video Recording systems and more. Please consult manufacturer for compatibility. Listing Includes: Kustom Signals Automatic Audio Transmitter Lavaliere Microphone Kustom Signals Automatic Audio Receiver Kustom Signals Interface Cable - 155-3340-00 Duty Belt Holster for Transmitter Shipping is calculated for US & International customers above. Powered by SixBit's eCommerce Solution