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The ER310Pro is Midland's upgraded emergency crank weather radio, adding Bluetooth streaming and a 10,000 mAh battery that the original ER310 lacked. Midland claims over 200 hours of radio runtime per charge, plus a hand crank and solar panel for off-grid charging. It suits households in storm and outage country and campers who want a radio, charger and light in one unit. Against rivals like the Sangean and Eton crank radios, it trades a smaller, simpler feature set for much longer battery life and phone streaming.
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The Midland ER310Pro is an emergency weather alert radio with Bluetooth. It is the higher-capacity version of the ER310, with a 10,000 mAh rechargeable Li-ion battery, triple the capacity of the original model. The battery provides over 200 hours of continuous radio operation on a single charge.
The radio can be powered by its integrated solar panel, a hand crank, a USB-C input, or the rechargeable battery. One minute of cranking gives approximately 9 to 10 minutes of radio playback. The bidirectional USB-C port recharges the radio and also lets it work as a power bank. It can charge a smartphone such as an iPhone 16 up to 3 times.
In Alert Mode, the radio stays in a low-power standby state and listens for NOAA emergency signals. When an alert comes in, it sounds a loud siren and flashes the LED strobe. Bluetooth lets you stream news, podcasts, or music from your smartphone. The backlit LCD shows the clock, battery level, radio frequency, and ambient temperature. The Cree LED flashlight has High, Low, and SOS Morse code strobe settings. An ultrasonic dog whistle is also built in.
