Asunflower&reg; Wireless Bluetooth 3.0 Multipoint Handsfree Speakerphone Car Visor Speakerphone Support Two Phones Requiring no installation, just clip it on your sun visor via magnetism. Designed with 20 hours of talking time and 40 days of stand-by time,you can count on it for important calls. Comes with fully automatic pairing and high quality to fit perfectly into your car. Enables you can use two phones simultaneously. Will enjoy echo and noise-free conversations due to a powerful speaker and DSP technology.