The Targus Rechargeable Stow-N-Go Wireless Optical Mouse is smart and sleek, offering clever features that are ideal for the mobile user. With a simple click, the wireless USB receiver easily stows in the built-in compartment under the mouse, so you''ll know where to find it when you''re ready to use it. There''s no need to constantly replace the batteries or tote around a charging cradle with this mouse the rechargeable batteries can be easily charged by the included USB cable. Additionally, the power automatically turns off when the USB receiver is stowed in the compartment, prolonging your battery life. With 2.4 GHz RF technology and 16 channels, the Stow-N-Go Mouse allows for minimum interference and increased operating range.