Sharper Image Powerboost Hot + Cold Dual-Temperature Attachment - Instant Heat Product Features ? INSTANT HEAT COLD: Switch instantly between soothing heat (115F) and refreshing cold (38F) for customized therapy. ? 6 TEMPERATURE LEVELS: Choose from six temperature settings to find the perfect level of relief and comfort. ? UNIVERSAL POWERBOOST COMPATIBILITY: Includes 3 adapters (18.5 mm short, 18.5 mm long, and 16 mm) to fit any Powerboost massage gun. Compatible with Powerboost Move, Powerboost Deep Tissue, Powerboost 2.0, Powerboost 3.0, Powerboost Max, Power Percussion, Powerboost Flex, and Powerboost Palm. Compatibility depends on the size of the attachment used by the massager (18.5mm or 16 mm). ? THERAPEUTIC BENEFITS: Cold therapy reduces stiffness, tension, and swelling, while hot therapy relieves pain, improves mobility, and speeds up recovery. ? LONG-LASTING USE: Enjoy up to 20 minutes of continuous use on a single charge for effective and efficient therapy sessions. 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!