Harmon Kardon just introduced a new battery powered portable bluetooth speaker called the Onyx Mini during the IFA tradeshow. Just like it sounds, the Onyx Mini resembles the larger Onyx speakers but in a more portable size and with an integrated stand/base and have 10 hour battery life. Up to three Onyx Minis can be paired up for greater volume and it also has a speaker phone and noise cancellation which makes it a great conferencing speaker. It'll be offered in several colors including black, white, burgundy, blue or gray. Specs are still forthcoming but it will be available this fall with an estimated U.S. price of $149.95. You can read the press release here.