Dell Bluetooth Mouse (WM615) Easily shift from usage to portability by twisting the Dell BluetoothMouse from the open shape that comfortably fits your hand when you're working, to the folded slim mode you can slide into your pocket. With a touch strip for precision scrolling, an infrared LED tracking sensor and smooth left and right click areas, the mouse puts accurate and reliable performance at your fingertips. Twist the Dell BluetoothMouse into slim mode and take it with you