Petzl - REACTIK+ Headlamp 300 Lumens， Bluetooth Enabled<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> REACTIVE LIGHTING TECHNOLOGY: headlamp automatically adjusts brightness to the needs of the user， offering a maximum of 300 lumens </span></li><li><span class="a-list-item"> ENERGY EFFICIENT: enjoy a longer burn time as the headlamp beam automatically adjusts brightness to the user's specific needs </span></li><li><span class="a-list-item"> MIXED BEAM: produced by the primary light source and activated with a light sensor </span></li><li><span class="a-list-item"> RECHARGEABLE: no need to carry around extra batteries. Headlamp runs on an 1800 mAh Lithium-Ion battery with an integrated USB port for convenient charging </span></li><li><span class="a-list-item"> WASHABLE AND ADJUSTABLE HEADBAND: this two-part system is constructed for optimal positioning during dynamic activities </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/414eVhj246L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41mvOmnZ%2BuL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51lTZgCpiiL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51Q4EBjwXGL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51M2QH5SKmL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51E7yFyGAwL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31fgv6gwxQS.png" noproxy>