Description <br> 1. Using high quality materials, quality is guaranteed <br> 2. Exquisite and compact appearance, beautiful arrangement of components <br> 3. Purchase 2 modules, you can realize the intercom function <br> 4. Compact size is simple and convenient to use <br> 5. Wide range of applications, suitable for a variety of DIY occasions <br> <br> Communication distance: 300 meters (open ground) <br> Operating voltage: DC3.3-6V <br> mitting current: 25mA <br> Receiving current: 25mA(0 gear)/150mA(8 gears) <br> Channel-Operating frequency: <br> CH1-467.6625MHz <br> CH2-462.6625MHz <br> CH3-446.05625MHz <br> CH4-409.8000MHz <br> CH5-168.2625MHz <br> CH6-40.650MHz <br> CH7-27.125MHz <br> Warm tips: <br> 1. This product contains circuit board and antenna, does not contain the speaker <br> 2. The antenna needs to be welded by yourself <br> 3. Speaker specification 8Ω 0.5W <br> Colour:Black <br> Material:ABS <br> <br> Package Contents: <br> 1 * FM e Circuit 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>