DriveNTalk BHF1800 SIMPLICITY Hands-Free Car Kit/Visor Type (Black) Improvement in acoustic performance, BHF1800 provides the finest sound quality Noise reduction and Echo cancellation with DSP Voice User Interface lets you focus on driving safely Caller's number announcement BHF1800 supports A2DP which allows your smart phone to stream your GPS turn-by-turn guidance audio loud and clear through the device.