The PRO version keeps the ER310 formula and quadruples the tank: a 10,000 mAh lithium pack that Midland rates at over 200 hours of radio use depending on volume, USB-C charging in and out, Bluetooth streaming, louder audio and a Cree LED flashlight. The housing gained molded bumpers at the impact points, and the antenna both rotates and extends. NOAA weather alert, SOS strobe and the ultrasonic rescue whistle carry over from the original.
Worth the upgrade for anyone who expects multi day outages and wants one device to keep phones alive; testers have named it the pick of Midland's emergency line. Heavier and pricier than the plain ER310, which still makes more sense for a light pack. Bluetooth playback eats the battery, so keep it switched off while waiting out a storm.
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