Model Number: R13K-1 Brand Name: GREEN CENTURY Key Specifications/Special Features: Fast connector use for wire PTTMultifunction key or LED shows the working condition of Bluetooth adapter, or show the starting up with long press to make the Bluetooth adapter into the matching mode, the switch can also be used as PTT button after the Bluetooth has been matched with the Bluetooth headsetInstallation connector of two-way radio:Through the B1 adapter to connect to the radio and other parts, a few radio need to tightening the adapter's screw in order to guarantee it can connect well