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Amazon.com: lychee Wireless Optical Pocket Pen Mouse, 2.4GHZ USB Wireless Optical Pen Mouse DPI 1200 Handwriting Mini Mice for PC Laptop Notebook Computer (6th Version (Blue)) : Electronics
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Sadocom 2.4GHz Wireless Optical Mouse Pen, Handwriting Pocket Pen Mouse, Adjustable 800/1200/1600 DPI with Type C and Micro USB Adapter, Ergonomic Mice for PC Laptop Tablet Mobile Phone (red) - Newegg.com