Motorola TX550 Sonic Rider Bluetooth Car Kit Speakerphone - Bulk Packaging COMES BULK PACKAGED. Take calls from up to two phone lines at the same time, so more than one passenger can use the speakerphone. Also saves up to six phone connections, so the whole family can use World class echo and noise reduction with one microphone, and powerful 2-watt speaker ensure youll hear and be heard over road noise More than 2x BETTER TALK TIME, Than the leading competitor (45 hours) This speakerphone tells you when you are connected, battery level, and if mute is on with audible voice prompts .