Exuding high-quality craftsmanship in both its aesthetics and engineering, the Beolit 20 Portable Bluetooth Speaker from Bang & Olufsen features an anodized aluminum body, durable polymer base, and vegetable-tanned leather carrying strap. Within the sleek and refined enclosure, there are three 1.5" full-range tweeters, one 5.5" woofer, two 35W Class-D amplifiers (woofer & tweeter), and two 4" passive bass radiators. This combination of speakers work to deliver B&O's True360 immersive sound that achieves low frequencies to properly accommodate a wide bass range for your favorite music.