1. Bluetooh 2.0 transmission, in good quality sound fortelephone.                                                                                       

2. 3.7V standard chargeable lithium battery, can keep power onfor a longtime.                                                                 

3. 2.5W bulit-in megaphone, clear timbre, adjustablevolume.                                                                            

4. With phone call savingfunction                                                        

5. With car charger for accessories

Bluetooth Handfree Car Kit