OFFICE - WIRELESS MOUSE - BLACKULTRA COMFORTABLE - CURVED SHAPE ALLOWING TO PERFECTLY FIT THE SHAPE OF THE HAND - PLEASANT GRIP - MORE EFFICIENT CONTROL - THE ADJUSTMENT OF THE SENSITIVITY ON THE FLY ALLOWS YOU TO ADJUST THE SPEED OF THE MOUSE ACCORDING TO THE NEEDS - HAS BUTTONS ON THE SIDE TO BE OPERATED BY THE THUMB MAKING IT EASIER TO CARRY OUT YOUR MOST COMMON ACTIONS - READY TO USE, NO INSTALLATION NECESSARY - 2 AAA BATTERIES PROVIDED.CHARACTERISTICS: PC / MAC COMPATIBLE - ON / OFF BUTTON - CONNECTIVITY: USB 2.0 RF - DIMENSIONS: L 12.5 X H 6.9 X D 4.6 CM - DPI SWITCH: 800/1200/1600/2400 - NUMBER OF BUTTONS: 6 - COLOR. BLACK