Features:

• Bluetooth specification: 2.0
• USB software framework, update and charging
• Full duplex, noise and echo suppression,
• DSP technology
• Easily uses your car's speakers with 4 available frequencies settings
• Built-in-rear speaker and earpiece for
  private conversations
• Voice record and play back
• Name and number display
• Up and down scroll and redial
• Voice dial and redial capability
• High capacity rechargeable Li-ion battery with
  standby time 168 hours
• Call waiting function
• Voice dial and redial
• Full duplex / Noise & echo suppression / DSP technology
• Built-in Speaker / Wireless Earpiece / 4 frequencies transmitter
• Name and number display
• Wireless installation
• Voice record and playback
• VP and down scroll, redial