Operation Mode:Opto-electronicPower Type:RECHARGEABLE Number of Buttons:7 Number of Rollers:1 pcs Hand Orientation:Right Package:Yes Style:DPI adjust button,Optical roller DPI:1600 Interface Type:bluetooth Type:Bluetooth Wireless Origin:Mainland China Certification:CE,FCC,RoHS,KC Ergonomic Design Mouse -- This Bluetooth Mouse features an ergonomic design that promotes a natural and comfortable hand position, reducing the risk of wrist and shoulder pain associated with prolonged use 1 Mouse for Multi-purpose -- This versatile mouse can connect to up to three devices simultaneously using Bluetooth 5.0, Bluetooth 3.0, and 2.4G Wireless, allowing you to switch between devices with just 1 click for seamless multitasking Noiseless Click & Voiced Click -- Equipped with 9 buttons(not programable), featuring with noiseless click & voiced click left/right button to meet your different needs for working or gaming Rechargeable Vertical Mouse -- It comes with a built-in rechargeable battery, means that you can use the mouse for an extended period of time without worrying about replacing the batteries. Its a great investment for anyone who values convenience, reliability Universal Compatibility -- This mouse boasts of an impressive wide compatibility range due to its ability to connect wirelessly via both Bluetooth and 2.4G technology. It is designed to seamlessly work with virtually all Bluetooth-enabled devices or those equipped with USB ports Ergonomic Vertical Mouse 1 Mouse for Multi-purpose This mouse connects to 3 devices via Bluetooth 5.0 + Bluetooth 3.0 + 2.4G USB receiver simultaneously, the switch button is just near your thumb for switching between3 devices easily, with conspicuous lights on the top of the mouse to let you know which connection mode you are using Vertical Ergonomic Design Mouse Lets try this vertical one if you tired of using the traditional grip, the shape of this Bluetooth Mouse keeps your hand in the right ergonomic position, end of wrist & shoulder pain. User Friendly Vertical Mouse Page forward and back buttons enable you to operate faster and more efficiently, the mode switch button on the bottom let you can switch from your computers easily by a simple click (PLS KINDLY NOTE "forward & backward" function is not available for Mac OS) User Friendly Vertical Mouse Page forward and back buttons enable you to operate faster and more efficiently, the mode switch button on the bottom let you can switch from your computers easily by a simple click (PLS KINDLY NOTE "forward & backward" function is not available for Mac OS) With Voiced & Noiseless Left/right Button Featuring with noiseless click & voiced click for left/right button to meet your different needs, you can choose the noiseless one which wont bother others, while you can also choose the Voiced one to enjoy the "Click"