Standard Horizon SSM-517A Earpiece Microphone f/HX270, HX370, HX471 HX400 [SSM-517A] Brand_Sufix Safe for all finishes including

Safe for all finishes including paint

rugged construction and design features that make it ideal for portable summer and winter use

Allows variable parameters to be set for CPA and TCPA alarms

Select between 12 colors when using a switch or unlimited colors when using Shadow-NET® enabled products

Line Entry L: 1-3/4"

Standard Horizon SSM-517A Earpiece Microphone f/HX270, HX370, HX471 HX400 [SSM-517A] Brand_Sufix Safe for all finishes includingSSM 517A Earpiece Microphone for HX270, HX370, HX471 & HX400 The Standard Horizon SSM 517A Earpiece Microphone is compatible with HX270, HX370, HX471, and HX400. Specifications: Type: Microphones Box Dimensions: 1"H x 3"W x 4"L WT: 0. 15 lbs UPC: 788026176373