You might looking for a portable Bluetooth speaker with premium design and functionality, here is the Beolit 15 from B&O Play by Bang & Olufsen. Company says it comes with True360 omni-directional sound and the Bang & Olufsen Signature Sound. On exterior parts, the B&O Beolit 15 portable Bluetooth speaker is built by premium quality materials including anodized aluminum and full grain leather.
Moving on hardware specs, the aluminum-clad speaker provides four active drivers and two passive bass radiators. Thus, it is backed by dual Class-D amplifiers. All of them will able to produce a peak power of 240W. The first amplifier channel features a 5.5-inch long-stroke full-range driver. There are two 4-inch passive bass radiators located on each side that offers better bass performance and in balance to avoid vibration.
Another amplifier channel on the B&O Play Beolit 15 premium Bluetooth speaker has three 37mm mid-tweeters. Two of them are placed on the front corners, 15 degrees upwards, and facing outwards at 45 degrees. The third one positioned on the backside of the speaker.
The Beolit 15 premium mobile wireless speaker packs an internal 18WH battery, a 3.5mm aux jack, and Bluetooth 4.0 connectivity. Audiophile will able to enjoy listening their favorite songs up to 24 hours of continuous playtime from a single battery charge. To charge mobile devices when it connected to the speaker, the Beolit 15 offers an USB port.
Arriving in three different color options (Polar Blue, Natural Champagne and Shaded Rosa), B&O Play Beolit 15 will be available starting March 2015 and cost $500.
Source: Product Page