This 1.5mm stylus pen is USB rechargeable and can be used for approximately 30 hours. It doesn't require pairing and is compatible with iPads and smartphones. - Color: Blue - Pen Tip: 1.5mm - Compatible Devices: iPad/iPhone/Tablet/Smartphone - Charging Method: USB Charging - Usage Time: Approximately 30 hours Thank you for viewing. I used it once, but it was difficult to use due to poor compatibility, so I am selling it!