BSS EC-4BV-WHT-US Ethernet Controller With 4 Buttons And Volume (White - US)The Soundweb Contrio EC 4BV is an Ethernet wall controller for use in Harman HiQnet systems. The EC 4BV can control and monitor parameters within BSS Audio Soundweb London and other HiQnet devices, including Crown DCi series amplifiers. The EC 4BV is available in black or white, and in single gang US Decora or single gang EU form factor. The EC 4BV contains a single Ethernet port for configuration, control, monitoring, and power via PoE. The EC 4BV is