Features: LCD display， caller ID， digital and English subtitles;Voice can be opened to enroll in Chinese or EnglishOne button operation to achieve answer， redial， reject， hang up， and support for voice dialing;Phone book function， support 600 address book import;Store the final answer of 10 phone numbers;Built-in DSP noise reduction and echo cancellationSolar charger， cigarette lighter， USB charging a variety of waysHigh quality Li-ion battery， standby time 300 hours.Size: 100mm (length) x 55mm (width) x 18mm (thick) Specifications: Frequency range: 2.4GHz spectrumTransmit frequency: 87.5-108MHzOperation distance: 0-10mCar charger input voltage: DC 12-24VTalking time: Up to 12 hoursStandbytime: Up to 9 daysColor: Black and silverSolar panel size: 62 x 39mmProduct size: 110 x 57 x 18mm Notice : TF Cards NOT included. Package Content: 1 x Bluetooth Handsfree Device for Car1 x USB Cable1 x Car Charger1 x Suction Bracket1 x User Manual