Sentry Industries PRS10 is a portable radio with a built-in battery that can be charged by solar, dynamo, and USB. It has a rugged rubberized finish, a green LED tuning indicator, and a blue LED charging indicator. It also has a speaker or earphone output with adjustable volume.

The radio has a sensitivity of better than 10 uV for FM and 1.5 mV/m for AM. It can receive FM frequencies from 88-108 MHz and AM frequencies from 530-1650KHz. The audio frequency output power is more than 100 mW.

The PRS10 can be used in a variety of situations. It is perfect for camping, hiking, or other outdoor activities. It can also be used as an emergency radio. The built-in battery provides up to 7 hours of playtime after being fully charged.