ptahdus men's heated vest with neck warmer included rechargeable battery 7.4v (black/yellow, 3x-large) ptahdus <strong>product feature:</strong><br /> 4 core heated elements across body (front chest and mid-back)and neck, which can independently control by the led power button.<br /> extra thickened cotton layer with fleece lock internal heat excellent and won’t lose heat anymore.<br /> waterproof and breathable material with dwr (durable water repellent) coating.<br /> abandon traditional pre-heating setting. the quick heat function can deliver warm feeling and heat people up in second. up to 8 working hours.</p> <p><strong>faqs</strong><br /> <strong>1. how long will the battery last while in use?</strong><br /> normally at 70°f,<br /> high heat setting: 3-4hours<br /> medium heat setting: 5-6 hours<br /> low heat setting: 7-8 hours</p> <p><strong>2. </strong><strong>2. can i wear it on the plane?</strong><br /> yes,this is tsa friendly. <br /> <strong>3. how to clean my heated clothing?</strong><br /> disconnect and remove battery pack from battery holder pocket before washing. wash in hand or machine in cold water beneath 30°c. do not twist or wring. (dry-clean is forbidden)<br /> <strong>4. how to achieve its maximum keep warm performance?</strong><br /> basically, ptahdus suggest use could wear a big coat under the heated vest soft shell to achieve its maximum keep warm performance.</p> <p><strong>what' included:</strong><br /> 1 x ptahdus men’s heated soft shell vest<br /> 1 x 7.4v lithium polymer battery<br /> 1 x power bank charger<br /> 1 x type-c charging cable<br /> 1 x user manual</p>