Features: brand new and high quality 2.4G+BT5.1 Dual Modes Wireless Transmission Technology,Energy-saving, built-in storage, no need for code, for smart connection. Third gear DPI adjustment design, 800-1200-1600dpi. Colorful luminous design, long press the dpi button for 2 seconds to turn off the light. Silent design,quiet and elegant office wireless mouse.High resolution: Max 1600 DPI high resolution for fluid motion. Fashionable slim design: Slim design for sleek look and portable use.Add a one-click desktop feature to quickly return to the desktop. 250Hz high rate return chip, data transmission is faster,fast cursor positioning.15M wireless receiving distance,Superior anti-interference ability. Specifications: Color: Black Material: ABS for Key life: 5 million times(Silent design) Wireless distance: 15m 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 Rated voltage / current: 3.7V / 18mA Power Type:Rechargeable(Charging for time 2h,Working for time 150h) Type:2.4Ghz Rechargeable wireless mouse Buttons: 2 Buttons and 1 Round (Middle Button) and Dpi for key and One-button desktop button(Only support for windows system System requirements: for Windows 98 / Me / 2000 / XP / Vista / Win 7 / Win8 / 10/Vista for Mac OS or latest. Item size: approx. 11.3x5.7x2.6cm/ 4.45x2.24x1.02in Note: Please allow 1-2cm errors due to manual measurement,pls make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x 2.4 G+BT5.1 Dual Modes Mouse 1x USB Receiver 1x USB Charging Cable(25cm) 1x Instruction Manual