Bluetooth WM1 Wireless Music Interface for Intercoms With 6-Pin AUX Ports connects your Bluetooth and intercom wirelessly, offering seamless music streaming and phone calls. The WM1, plugging into the back of your intercom, pairs instantly with your Bluetooth. With significantly efficient, powerful, and cost-effective Bluetooth streaming, you can power your WM1 using the built-in toggle switch. The WM1 is compatible with RRP6100, 357, 600, 660, 686, and other brand intercoms, allowing phone calls, connecting wirelessly to Bluetooth devices with a 40' range, and clear audio streaming. When transmitting via the intercom, music automatically mutes. This interface can be installed by connecting the WM1 to the AUX port, connecting the power cable inline with the intercom power cable, and pairing it with your Bluetooth as inAW3860in with passcode in0000in.