Celestron Elements FireCel 3-in-1 Hand Warmer, Multifunction LED Flashlight, Rechargeable Power Pack Device 3-in1 rechargeable power pack USB 2.0 port for recharging devices in the field (cell phones, tablets, etc) Dual LED flashlight with 5 modes; White on, Red on, White flashing, Red flashing, SOS 2500mAh lithium ion rechargeable battery 2 temperature reusable electronic hand warmer (110/130)