PROMATE CarMate-7 Smart Wireless Handsfree Car Kit wireless in-car speakerphone is a simple solution for responsible driving. Hands free calling lets you keep your eyes on the road, and the convenient motion-activated on/off sensor saves battery life. The sleek and compact design looks great in any car, and the powerful 3 Watt speaker with HD audio packs a punch. Noise canceling technology helps you hear more of your call and less of the road, and voice prompts let you know when you’re connected, muted, or low on battery. And with 18 hours of talk time and three weeks on standby, you battery will last on even the longest road trips.