logitech usb headset h540 vs h390

Key Features:

• Premium Audio for Calls and Music
• High-Definition Sound Quality
• Laser-Tuned Drivers and Built-In Equalizer
• Plug-And-Play Headset Can Be Used with Any PC or Mac Computer with A USB-A Port or Adapter
• Noise Canceling Mic
• On-Ear Controls
• Padded Comfort
• USB-A Connection