Logitech Wireless Presenter R400

Technical Specifications

• Laser
  Class: 2 laser
• Max output: Less than 1m W
• Wave Length: 640～660nm (red light)
• Battery
  Battery type: 2 AAA batteries
• Battery life (Laser pointer): 20-hour maximum
• Battery life (Presenter): 1050-hour maximum
  Connectivity
• Wireless technology: 2.4 GHz wireless technology
• Operating distance: Approx 50 ft (15 m) ?
  System Requirements

Logitech Proprietary Receiver
Available USB port required Windows 10, 11 or later