Featuring a high voltage electric arc for ignition the UST TekFire Fuel-Free Lighter offers easy push-button operation for quick fire-starting in breezy conditions. The internal lithium-ion battery eliminates the need for liquid fuel and it can be easily recharged via any USB port using the included cord. It can also be used at all altitudes without requiring oxygen intake adjustment. The TekFire Lighter has a convenient green indicator that lights when in use and a 10-second time-out safety feature. 300 mAh rechargeable battery; USB cable included Wrist lanyard for easy carrying Windproof flameless and electronic Requires no butane fuel or adjustments for altitude Ideal for camping backpacking and hunting trips Rubberized case allows for easy grip Dimensions: 3 x 1.5 x 0.8 | Weight: 1.9 oz.