Ergonomic design K kirala neck massager, USB charging, easy to use with remote control. The instruction manual serves as the warranty. Since the purchase is recent, you can register yourself via QR code ❣️ This is a very good product, but I have a duplicate, so I hope you will use it. It can also be heated. There are many patterns, so you can use it to suit yourself. Thank you. - Model Name: kirala - Charging Port: USB charging - Remote Control: With included remote control - Massage Function: Neck massage function - Design: Ergonomic design Thank you for viewing.