Description <br> Brand New and High Quality <br> Operating voltage: 0.7V - 9V <br> Frequency adjustment range: 68-108MHZ <br> 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 <br> <br> Relations Working voltage (volts) and supply current (mA) and mit power (dBm) is as follows: <br> 9V, 24mA, 10.2dBm (that is, 11 mW) <br> 8V, 21 mA, 9.5dBm <br> 7V, 19mA, 8.5dBm <br> 6V, 17mA, 7.1dBm <br> 5V, 14mA, 6.1dBm (about 5 mW) <br> 4V, 12mA, 4.5dBm <br> 3V, 9mA, 2.2dBm <br> 2V, 6mA, -1dBm (about 1 milliwatt) <br> 1.5V, 4.2mA, -4dBm (about 0.5 mW, the average family environment launch sufficient, small green radiation!) <br> 1V, 2.4mA, -9dBm <br> 0.7V, 0.9mA, -20dBm (that is 0.01 mW) <br> Note:Due to different production batches, there is a slight color difference, which does not affect the use. <br> Colour:Green <br> Material:ABS+electronic components <br> <br> Package Contents: <br> 2 * mitter module board <br> <br> Only the above package content, other products are not included. <br> 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. <br>