This is a wireless mouse from Elecom. The wireless adapter is stored on the bottom. There are no issues with connection or operation. Model Number: M-XGM10DBS Size: Width 7.38 x Depth 10.96 x Height 4.08 cm Power Source: Battery-powered Connection Type: Wireless (Bluetooth) Other: Silent Purchase Date: September 2023 It uses silent switches, allowing for quiet use even in places where noise is a concern. The design, born from the shape of the hand, provides an even better "grip" feel.