Midland ER300 Emergency Crank Weather Alert Radio Multiple sustainable power sources  Use solar, hand crank or rechargeable battery to power up the radio. Extremely bright flashlight uses Cree LEDs  1400 Lux. SOS flashlight beacon  Activates Morse code for emergency assistance. Ultrasonic Dog Whistle - May assist search and rescue teams in locating individuals during an emergency situation. Long Battery Life  2000 mAh rechargeable Li-Ion battery gives up to 25 hours of normal use.