Covert Audio Transmitter Bug Miniature UHF transmitter designed for covert surveillance operations or other operations as required pursuant to the gathering information for investigative purposes. Product Specifications: Diameter: 15mm Thickness: 5mm Operating Band Frequency: UHF 400-470MHZ Random Will operate on FM Band receivers Operating voltage: 2.2 - 3V 1220 coin cell battery not included for security reasons. Purchase at local electronic or watch shop Current: Approximately 8mA Operational Time: reference 1220battery Operational Distance: 300-650 feet approximately in “open field” Transmission distance may very depending on weather conditions or other interfering RF signal within target area of communications. Do not use this device for any illegal purposes!!! Buyer is fully responsible for adhering to any local, State or Federal laws Purchase your Compact Audio Bug Transmitter Today