Operating voltage: DC 2V-9V
Reference distance: open ground 100 meters, 10-30 meters indoor environmental obstacles (3v voltage test, increasing the voltage from the greatly increased)
Operating frequency: 85MHZ - 115MHZ (usually between 99-101 boot default frequency)
Receive way: as long as the 88-108MHz FM radio can receive, with FM feature phones.
Frequency adjustment: adjustable capacitor
Output impedance: 50ohms
Size: 2cm*1cm L*W