Standard Horizon SSM-21A Speaker Mic f/HX890, HX400, HX400IS, HX380, HX40 HX210 [SSM-21A] Cartography | Garmin Navionics+ Deluxe All-Stainless Shorty Dual Trumpet

Deluxe All-Stainless Shorty Dual Trumpet Horn - 12V

Rating: 105 db@ 1 Meter

This heavy-duty isolator allows multiple batteries to charge automatically from one or two alternators and prevents the discharge or ‘dumping” of one battery into another

No wires or connections to make

using this product

Standard Horizon SSM-21A Speaker Mic f/HX890, HX400, HX400IS, HX380, HX40 HX210 [SSM-21A] Cartography | Garmin Navionics+ Deluxe All-Stainless Shorty Dual TrumpetSSM 21A Speaker Mic for HX890, HX400, HX400IS, HX380, HX40 & HX210 Standard Horizon SSM 21A submersible speaker microphone with heavy duty belt clip. Compatible with Standard Horizon HX890, HX400, HX400IS, HX380, HX40, and HX210. Specifications: Type: Microphones Box Dimensions: 3"H x 5"W x 7"L WT: 0. 45 lbs UPC: 788026174768