Petzl Tikkina 2 LED Headlamp - Orange Survival It ships with one SF18650

It ships with one SF18650 rechargeable lithium-ion battery that charges through its own built-in USB port

Pack size: 7 1/2" x 8" compressed

Think of the possibilities

compatible with most gym cardio equipment and Suunto Fitness Solution

Petzl Tikkina 2 LED Headlamp - Orange Survival It ships with one SF18650The TIKKINA headlamp is designed to meet everyday lighting needs. It has two lighting modes (maximum and economic) to adapt light quantity to the situation. It is also equipped with new, improved performance LEDs and a push button switch. The compartment now has an easy to use system that allows the user to very easily change the batteries or to equip the headlamp with the ADAPT mounting system. Versatile and energy efficient: Two lighting modes