Wall-mounted remote control for MS 520 (volume, program selection), up to 3 controllers per zone, CAT5 cabling, dark grey, without frame. Designed to easily fit into any 503 flush/wall-mounted box using standard supports and cover plates available on the market. This remote control allows for program selection and volume adjustment within the designated zone. It can also put the MS 520 into standby mode. Connection to an MS 520 is achieved through CAT5 cables and RJ45 plugs. Available colors include white (W), grey (G), and silver (S). Features: - Designed for easy insertion into any 503 flush/wall-mounted box - Enables program selection and volume adjustment within the designated zone - Can put the MS 520 into standby mode - Connects to an MS 520 using CAT5 cables and RJ45 plugs - Available in white (W), grey (G), and silver (S)