Intex 64157E Dura-Beam Plus Mid-Rise Air Mattress: Fiber-Tech ? Twin Size ? The Twin Dura-Beam series Comfort Airbed is a great portable sleeping solution with a built-in pump powered by any USB-A power source rated 2 Amp and higher. The USB pump is not only smaller and lighter but also more energy efficient than traditional electric pumps. Simply connect the included USB-A cord to the power source of your choice and inflate or deflate within minutes. Product Features ? VERSATILE ? Perfect for both indoor or outdoor use, this raised 14" bed includes a built-in USB pump that is convenient and versatile; the unique construction provides superior stability with a soft, velvety sleeping surface ensures a good night's sleep ? STRENGTH ? Unlike traditional air beds that tend to sink or dip over time, our 14" Dura-Beam Air Mattresses are designed with bottom ring stability to withstand the weight of the sleeper without sagging or losing its shape ? FIBER-TECH BEAM CONSTRUCTION ? Comprised of thousands of high-strength polyester fibers that provide enhanced comfort, stability and support; Fiber-Tech Beam Construction can withstand more weight and pressure without losing its comfort or stability ? BUILT-IN USB ELECTRIC PUMP ? Convenient and versatile to use with your phone charger, 12V USB car charger, or a portable battery; the USB pump is more energy efficient than traditional electric pumps ? STRETCH ? At first inflation the material will STRETCH, which is sometimes misinterpreted as leaking; You will sense a loss of pressure, that's just the bed stretching, simply re-inflate the bed again; the bed will fully settle within 2-3 nights Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!