2.4G wireless transmission technology 10M wireless receiving distance Third gear DPI adjustment design quiet and elegant office wireless mouse Colorful glow, more cool High resolution, max 1600 DPI high resolution for fluid motion Slim design for sleek look and portable use Specification: Model: M40 Material: ABS Key life: 5 million times Wireless distance: 10m Work: Photoelectricity Battery capacity: 500mAh (chargeable lithium battery) Charging cable length: 25cm Project type: Ergonomics optical mouse Resolution: 800, 1200, 1600 (1200dpi Default) Operation mode: Opto-electronic Package included: 1 x M40 2.4G Wireless Computer RGB Mouse with USB Nano Receiver 1 x USB Charging Cable (25cm) 1 x English and Chinese Manual Other items not included