Review on AGPTEK Emergency Hand Crank Radio 4000mAh: Portable Solar Weather Radio with AM/FM/NOAA/Flashlight/SOS Alarm - Ideal for Outdoor and Household Emergencies - Includes Carrying Bag by Tom Roberts

Not impressive performance, but not to be expected at this price point. DO NOT rely on micro solar cells to charge your device. It arrived with an indicator of four showing charging status. After four days of inactivity in the bright Southern California summer sun, there were as many as two lights. A manual crank would take a full day or more at over 120rpm to get a usable charge, so that's not practical either. It's a decent last backup for a holdall in your car, but nothing more.