1.Wireless Mouse with Vertical Ergonomic Design: Made for medium - large hand size and right-hand orientation. This ergonomic wireless mouse promotes a comfortable handshake grip, effectively minimizing strain on the arm and wrist, perfect for long hours at the computer 2.Dual Modes 2.4G Wireless and Bluetooth: Use the included USB dongle transceiver to connect the mouse wirelessly or utilize the Bluetooth function to pair the mouse with a Bluetooth enabled device. Switch between modes via the mode switch button at the bottom of the mouse 3.Rechargeable Battery and Adjustable DPI: Features a fully rechargeable built-in lithium battery via USB-C (charging cable is provided). Toggle through 800, 1200, 1600, 3200 DPI modes depending on your preference regarding mouse sensitivity 4.Includes Removable Palm Rest: The V638W comes with a non-skid, anti-sweat removable palm rest which helps reduce drag and makes the mouse more effective to glide across different surfaces Color: As Shown Material: ABS Package Contents: 1 x mouse 1 x charging cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.