?Perfect DIY transceiver kit for radio amateur. It increases a DC buzzer on the PCB and the buzzer will beep when pressing the button. <br><br><strong>Features:</strong> <br>This transceiver kit is a perfect DIY kit for radio amateur. <br>The local frequency is fixed at 7.023MHz when transmitting£¬ the local frequency is 7.023-7.026MHz when receiving. <br>Increase a DC buzzer on the PCB£¬ it will beep when pressing the button. But you can choose whether to install the buzzer as you want. <br>Can be powered by 9V battery(not included) or 9-12V DC power supply. <br>Specific sign on the PCB£¬ convenient for installation. <br><br><strong>Specifications:</strong> <br>PCB Size: 5 * 5cm / 2 * 2in <br>Output Power: 0.8W(9V power supply) / 1.2W(12V power supply) <br>Power Supply: 9V Battery(not included) / 9-12V DC Power Supply <br>Antenna: 50ohms£¬unbalanced(antenna is not included) <br>Package Size: 7 * 9.5 * 1.5cm / 2.8 * 3.7 * 0.6in <br>Package Weight: 24g / 0.9oz <br><br><strong>Package List:</strong> <br>1 * Set of DIY Transceiver Kit