It can simultaneously connect to up to three devices, such as a Windows computer, MacBook, Android phone, and tablet, via Bluetooth 5.0+ Bluetooth 3.0+2.4GHz wireless. Simple switch between the various inputs with a single "click." An 800mAh Li battery is built in, and a USB cable is included for convenient charging. Use a clever energy-saving design that has a long standby time and auto-sleep and wake modes. Additional features include plug and play and use while charging. has an indicator for the battery level. NOTE: In order to charge the mouse, please connect the mouse cable to your computer. The lifespan of the mouse and battery will be impacted if you charge it using a fast charger or a mobile phone charger. Strong and commanding design, double-wing plating, skin-friendly material that fits your hands perfectly, and a cozy