The Altec Lansing iMW778 OmniJacket Ultra OmniDirectional Bluetooth speaker is the flagship product in the OmniJacket line featuring, true wireless stereo plus pairing for pairing up to 2 OmniJacket Ultra's together, spoken caller ID, Hands-Free call accept/call reject, dual mounting points and an On-board microphone for clear, hands-free communication. Designed with omni-directional sound, immerse yourself into 360 degree room filling sound for the ultimate listening experience. The OmniJacket Ultra is IP67 waterproof, shockproof, snowproof rated and it FLOATS! ! With 60 hours plus built-in dual smartphone chargers for remotely charging portable devices and an aux-in port, the OmniJacket Ultra is the ultimate music companion for wherever you want to go.