Sangean MMR-99 review
Sangean MMR-99 AM/FM Weather Emergency Radio with Bluetooth
By Tom Calder
Key specs
The maker's figures.
- Power
- Hand crank, solar, USB-C
- Bands
- AM, FM, NOAA weather
- Alerts
- NOAA Public Alert
- Charges a phone
- Yes (2,600 mAh)
Sangean's emergency radio: crank, solar and USB-C, NOAA Public Alert, a 2,600 mAh battery and Bluetooth for music. Sangean is a long-standing radio maker.
- Best for
- A crank radio from a mainstream radio maker
- Skip it if
- You need shortwave
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Researched, not used. We haven't used this product. This review is built from the maker's specifications, owner reports and our own sizing.
What we like
- Public Alert
- USB-C charging
- Bluetooth
Worth knowing
- 2,600 mAh is a phone top-up only
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Our review
Sangean's MMR-99 is a rugged hand-held radio that combines crank, solar and USB-C charging with AM, FM, seven NOAA weather channels and Bluetooth. This researched review covers what Sangean says it does, how the weather alert is described, what its 2,600 mAh battery can and cannot do, and where it fits.
What it is and who it suits
The MMR-99 is a digital-tuning radio from a long-established radio maker. Sangean's page lists AM, FM with RDS, Bluetooth streaming, an auxiliary input, three flashlights with different intensities and colors, a clock with alarm, and a weather band. It suits a household that wants one sturdy radio for the kitchen counter and the storm shelf, and that values good sound and easy station memory.
This is a researched review, not a tested one. It uses Sangean's product page and its US manual, dated September 20, 2022, as read on November 2, 2026, plus National Weather Service pages on weather radio. The manual is printed in tight columns, so we quote only passages that read clearly.
Build and controls
Sangean says the radio carries an IP55 rating and has reinforced corners to resist drops. It lists 20 memory presets each for AM and FM and 5 in the weather band, along with automatic tuning and adjustable bandwidth. It measures 7.98 by 4.48 by 3.52 inches and weighs 1 pound 15.7 ounces, which makes it a larger radio than the pocket-size crank sets on our hand crank radios page. The speaker is 2.25 inches with 1.5 watts of output.
Power and phone charging
The battery is a built-in 18650 lithium cell rated 3.7 volts and 2,600 mAh. It charges from a USB-C input rated 5 volts and 2.4 amps, from the solar panel, or by cranking. The manual says a minute of dynamo charging, turning the handle at about 100 rotations per minute, gives about 10 minutes of radio listening, and that the solar panel charges the battery only in natural sunlight and not in artificial light.
A USB-A output rated 5 volts and 1 amp lets the radio charge smaller devices, which Sangean pitches as a portable battery feature. At 2,600 mAh, treat that as an emergency top-up for a phone call. For a larger battery, see the Mesqool 12,000 mAh radio.
Weather alert
Sangean lists national alerts with all seven NOAA channels. In the US version, the manual shows a weather alert indicator and a weather alert LED, and describes a mode you start by holding a button until ALERT appears on the display. The manual says that in this mode the front-panel buttons stop responding, so learn the exit step before a storm. It also describes an emergency siren that works with the radio on or off.
Retail listings mention Public Alert, but Sangean's page and manual do not use that term in the text read for this review. The National Weather Service recommends looking for the Public Alert or NOAA Weather Radio All Hazards logo, and says receivers should have battery backup, a tone alarm and, if you want county-only warnings, SAME. Check the box for the logo, and for county coding, since Sangean's page does not mention it.
How it compares
On the weather radios page, the Midland ER310PRO is the other USB-C, solar and crank pick. The Sangean adds Bluetooth, richer tuning and an IP55 rating, but no shortwave, which the Kaito KA500 offers. The C. Crane CC Skywave 2 lists shortwave and about 60 hours on AA batteries but no crank. See weather radios and hand-crank radios for a feature guide.
Verdict
A well-built, feature-rich radio that doubles as an everyday set. Skip it if you want the smallest or lightest radio, shortwave, or a radio with a battery big enough to charge a phone fully.
A researched review, built from the maker's specs, manual and US listings; facts checked 2 Nov 2026. Sources: Sangean: MMR-99 FCC product page; Sangean: MMR-99 US manual (PDF, 20.09.2022); National Weather Service: NOAA Weather Radio receivers.
Who shouldn't buy this
Don't buy it if you need shortwave: pick a radio with SW.
This is a Researched review: we haven't used this product. We check every specification against at least two independent sources, re-check the US price on a schedule where we can track it automatically, and say plainly who it isn't for. Commissions never change a rating.
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Read the review →Questions
Does the Sangean MMR-99 have a NOAA weather alert?
Sangean lists seven NOAA channels and a US-version weather alert mode with an indicator and an LED. Sangean's page does not mention county coding or the Public Alert logo, so confirm those on the box if you want county-only alerts.
How long do I crank the MMR-99?
Sangean's manual says a minute of dynamo charging at about 100 rotations per minute gives about 10 minutes of listening. Crank in short sessions, and top up the battery by USB-C before a storm when you can.
Can the solar panel recharge it indoors under lamps?
No. Sangean's manual says the solar panel charges the battery only under natural sunlight and will not deliver a charge in artificial light. Place the radio where direct sunlight reaches the panel.