B70 series is made for customization, with light weight and wide range mounting sizes. Up to 4 signal wires are optional, like reversing warning, left turn warning, right turning warning, or some other warning messages, even some music.
You could provide us the wav files have, or just some text, then we could also prepare the message.
RoHS compliant， CE & EMARK certified
Mechanical drawing (mm)：
Wires/connectors optional (for two wire version):