Taichi Holdings (KOBAN) Hand-Crank Charging + Dry Cell Battery Emergency Radio ECO-3 When charged by hand for 15 minutes: Radio: 15 minutes / 40 hours Light: 10 minutes / 19 hours Siren: 3 minutes / 17 hours Mobile Phone: 60 minutes / 20 minutes - 30 hours Smartphone: 30 minutes / 20 minutes - 4 hours Brand / Model: KOBAN / ECO-3 Body Dimensions: Width 104 x Depth 46 x Height 66 mm Body Weight: Approximately 180g Body Material: ABS resin Power Source (Secondary Battery): Electric double-layer capacitor (2.7V 10F) Power Source (Dry Cell Battery): 2 x AAA batteries (sold separately) Radio Frequency: AM: 530-1600KHz FM: 76-108MHz (Supports Wide FM) Siren: Approximately 75dB Light: 1 x 5mm diameter white LED lamp Although it is new and unopened, there may be scratches on the box due to home storage. Please refrain from purchasing if you are concerned about this.