This compact wireless volume controller lets you adjust your car audio system from outside the cabin, so you can step away and still manage the volume during demos. It runs on the AuralSync protocol over the 2.4 GHz band with a dedicated 20.5 dBm transmitter and a 6 dBi omnidirectional antenna, reaching up to 500 feet with the stock antenna and up to 1,000 feet with an external antenna.

The aluminum case keeps the base unit protected and cool, while USB-C charging, intelligent auto shut-off, and over-the-air firmware updates through the AuralSync App keep it ready to go. It supports 15 V +/- RCA signal levels and can amplify incoming RCA voltage by up to +31.5 dB, with a flat frequency response from 5 Hz to 30 kHz.