• Brand: Logitech
• Model No: r 400
• Wireless Range: 50 feet
• Port Type: USB
• Supported OS: Windows 7, Windows 8 and Windows Vista
• Max Output: Less than 1mW
• Receiver weight: 6g
• Wave Length:640-660 Approximately
• Dimensions (H x W x D): 1.49 x 4.55 x 1.08 Inches
• Color: Black
1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
2. Please allow slight deviation for the measurement data.