Scosche voCALL CBHVA Bluetooth Speakerphone with Voice Announce Hands-Free Speakerphone with Car Visor Mount Voice Announce Caller ID Tells User Who Is Calling Dsp Echo Cancellation Ensures Crystal Clear Communication Talk Time: 10 Hours Voice announce caller ID tells you who is calling DSP echo cancellation Rechargeable lithium ion battery with 10 hours of talk time and 600 hours of standby time Includes car charger and USB charging cable 2.0 Bluetooth compliant; support profile: HFP