DriveNTalk BHF2000 SMART Hands-Free Car Kit/Visor Type (Black) Sufficient volume level with DSP(Digital Signal Processor) features & Dual microphone system Controlling the device with Voice User Interface & Gesture sensing, no need to touch! SMS/e-mail through User's voice (optional) Text to Speech service supports your safe driving by speaking caller ID, alert and the status of hands-free. There is no need to look at the LED, you can keep your eyes on the road. Try out our free promotion service of Voice to Text. You can email, send a text and be connected to social networks all through your voice.