Description Brand New and High Quality Operating voltage: 0.7V - 9V Frequency adjustment range: 68-108MHZ mission Distance: 9V work when using the 70 cm antenna conductors, open the local firing range 50-100 meters, the actual situation depends on the environment Relations Working voltage (volts) and supply current (mA) and mit power (dBm) is as follows: 9V, 24mA, 10.2dBm (that is, 11 mW) 8V, 21 mA, 9.5dBm 7V, 19mA, 8.5dBm 6V, 17mA, 7.1dBm 5V, 14mA, 6.1dBm (about 5 mW) 4V, 12mA, 4.5dBm 3V, 9mA, 2.2dBm 2V, 6mA, -1dBm (about 1 milliwatt) 1.5V, 4.2mA, -4dBm (about 0.5 mW, the average family environment launch sufficient, small green radiation!) 1V, 2.4mA, -9dBm 0.7V, 0.9mA, -20dBm (that is 0.01 mW) Note:Due to different production batches, there is a slight color difference, which does not affect the use. Colour:Green Material:ABSandelectronic components Package Contents: 2 x mitter module board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin