1:Bluetooth V2.0 2:1pcs car charger Clamp 3: manual 4:Standard package 5:OEM COST ADD COST "Bluetooth V2.0 :TTS(TEXT T0 SPEECH) function with phonebook Speak caller number (support multiple languages selection) Full-duplex sound quality With a Smart Digital Signal Processor (DSP) for echo/noise cancellation for reducing noiseSun visor clip fixation One-touch answer, call rejection, last number ...