usb radio
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Listed specs include USB‑C input at 5V/2A; a USB‑C input/output option at 5V/2.1A; and USB‑A output(s) such as 5V/2.4A and 5V/1A. Models offer USB‑A and/or USB‑C ports for charging devices and for acting as a power bank.
They receive standard AM and FM plus NOAA/weather band channels. Specs list FM at 87–108 MHz, AM at 520–1710 kHz, and the NOAA/weather band frequencies used for weather alerts.
Most use internal rechargeable lithium‑ion batteries (non‑removable). Some models use 18650 Li‑ion cell packs (commonly two 18650 cells or a single 18650 pack), while others have an integrated single lithium‑ion battery.
Common options include USB‑C charging and use as an internal power bank. Many models also support hand‑crank and solar charging, and a few accept AA batteries as an alternate power source.
Listed battery capacities range roughly from 14,800 mWh (noted as 4,000 mAh) up to about 37,000 mWh (noted as 10,000 mAh). A common midrange option shown is 19,240 mWh (5,200 mAh).
Most models include a built‑in flashlight and a separate reading lamp, plus SOS features such as a siren or a flashing alert light for emergency signaling.