ERGONOMIC: Scientific ergonomic design encourages healthy neutral "handshake" wrist and arm positions for smoother movement and less overall strain. BLUETOOTH 5.0 and 2.4GHz WIRELESS CONNECTION: With dual mode connection, The Bluetooth / 2.4GHz wireless mouse can work on TWO DEVICES, connecting one device through Bluetooth and the other through 2.4GHz USB Receiver. You could switch the mode between two devices by just switch. With only one mouse, you can switch free to control two devices, from your desktop to your tablet, laptop to Mac, extremely convenient. Silent Click: Special soundless design for the right and left buttons, help you build a quiet atmosphere without disturbing others. Rechargeable: Built-in durable durable lithium rechargeable battery, with a charging usb c cable. No more need for extra AA battery. WIDE COMPABILITY: Bluetooth mode works with Windows / for Android / for MAC OS system(Compatible with imac one machine / macbook / macbook air / mac mini, not compatible ipad / iphone). 2.4GHz mode works with laptop, desktop or any device with USB port, simply plug the USB receiver, plug and play. (Note: The USB receiver is stored in the battery compartment of the mouse). Wireless technology: 2.4G&bluetooth Wireless distance: 10m Resolution: 800/1200/1600dpi Operating cycles: 1,000,000 cycles Battery: 400mah lithium System requirement: Windows 2000/ 2003/ ME/ XP/ Vista/ Win7/ 8/ 10/ for MAC OS/ Linux Colour:Gray Material:ABS Package Contents: 1 x Bluetooth Wireless Mouse 1 x 2.4G receiver 1 x USB C charging cable