BASEUS FO1B Tri-Mode Wireless Mouse 800/1000/1600 DPI 2.4G/Bluetooth Mouse with Silent Button - Grey •20m Stable Transfer: Stable connection with low latency, good for large conference rooms and lecture halls •Silent Button: Reduced mechanical sound for a quiet clicking without disturbing others •Ergonomic Design: Linear design that flatters your hand, easy to move around with less wrist soreness, improving your work comfort •Three Adjustable DPI Levels: Three adjustable DPI levels (800/1000/1600) for different needs •Multi-System Compatible: Compatible with Windows, Harmony OS, Apple OS, Linux, Vista, and more Specifications: •Model: F01B •Transmission distance: 20m, 10m •Connection mode: 2.4G mode + dual Bluetooth mode •Bluetooth version: BT5.0, BT3.0 •Sensitivity: 800/1200/1600DPI •Return rate: 250Hz •Powered by: 1 x AA battery (not included) Package included: •1 x Wireless Mouse •1 x English and Chinese Manual •Other items not included