Specifications: PART NO:TCCK01 Product Name: Diy Car Handfree Set Minimum Order: 3000 Place of Origin: MADE IN CHINA Quality/Safety Certifications: CE Features: *Using expediently,no installation,used for all types of cars,safe driving and free talking *It can be used for all most types of the phones by choosing different adapters. *To effectively control the noise caused by EMI. *Freely switch between earphone and speaker,ensure your private talk. *Automatic charging the battery in mobile phone. *Two microphone design,use the inside micophone in the adapter directly.Also can use external micropone so that it can be placed in suitable place for getting better talking. *Auto-receiving and hanging up calls by setting of the mobile phone.