Bluetooth car hands-free system. This allows you to take important calls while driving. Compact and unique design, an essential accessory for your car. You can connect two devices simultaneously via Bluetooth. Features and product specifications: KX1 Bluetooth hands-free device for the car. Easily attaches to your car's sun visor. Rechargeable lithium battery, 1000 hours of standby time, 20 hours of talk time.