REPRONIZER 4D Plus Hair Dryer by Bioprogramming Purchased through the Bioprogramming Club official website's pre-order. Equipped with universal voltage, it can be used overseas. I used it once to check its operation, and it's lightweight, so my arms didn't get tired. Product registration has not been done, so the buyer can register for the extended warranty themselves. Instant purchase is OK. Please feel free to comment if you have any questions.