The Elecom Deft Pro M-DPT1MR Wireless Bluetooth Trackball Mouse is a black ergonomic mouse designed for precision and comfort. With a maximum DPI of 1500 and optical tracking method, it offers a smooth and accurate cursor control experience. Featuring 8 buttons and wireless connectivity via Bluetooth, this trackball mouse is ideal for use with a variety of devices. Made by ELECOM, a trusted brand known for quality products, this mouse is a reliable and efficient option for computer users looking for a convenient and efficient pointing device. No package but new comes with USB transmitter Thank You