The Tech-Life BoomBand Speaker, No. TL6BM-01, is designed for portability. This speaker mounts to the user's wrist like a watch, connects to a cellphone or mobile device and provides full-bodied sound at two to three times the volume of the average smartphone, the company says. The built-in microphone lets user's take calls right from their wrist without needing to touch their phone. This speaker offers a six to 10 hour batter life, is IPX6 waterproof and is available in several colors.