The Midland SPK100 is a passive 20-watt external speaker that relocates and amplifies the audio from a mobile two-way radio. It's an 8-ohm driver in an IP67-rated housing — dustproof and good through short water immersion, so it holds up in an open Jeep, a side-by-side, or a tractor cab. No power wire to run: it draws everything it needs from the radio's external-speaker jack.
It plugs into any CB, ham, or GMRS radio with a standard 3.5 mm external-speaker jack, including the Midland MicroMobile MXT series (MXT105 through MXT575). The 6.5 ft automotive-grade cord reaches most dash-to-footwell runs, and a standard 3.5 mm extension stretches it further without noticeable signal loss. There's no volume knob on the speaker — level follows the radio, which keeps the install dead simple.
A 180-degree swivel bracket and mounting hardware (screws and thumbscrews) are in the box, so you can aim the cone at your head whether it's bolted under a seat, to a rollbar, or under the dash. Twenty watts is enough to push comms over cab music and road noise so you stop missing calls on the trail.
