Standard Horizon MLS-300IB , does this
work on any
VHF radio that has an external speaker port or wire?
What is the push to alert button for , how does that
work? Only certain radios?
Links to product
https://www.amazon.com/Standard-Hori...R1YVJWH1PQBVF6
https://www.jamestowndistributors.co...t.do?pid=14135
https://www.newegg.com/p/0MA-001U-00061