ELEGIANT 1600DPI Slim Cordless Bluetooth 3.0 Optical Mouse Mice for $2.99 after coupon code PIIU5ZE5. Shipping is free on orders over $49. If needed, use this Filler Tool to pad the order for free shipping. Here is a screenshot for reference. It needs no USB receiver if your computer has Bluetooth function and supports Windows XP/Vista/ Windows 7/8, Android 4.0 and above, MAC OS, and more.