NikKTech posted a review on the E-Lektron JAD38-B Digital Sound System
A quote from the article:
E-Lektron JAD38-B Digital Sound System Review
Portable speakers may not be among the most popular wireless devices all year long but their sales seem to explore during the summer period probably because many people are looking for something to accompany them (and their friends) while relaxing in their back yard, camping or even when at the beach or pool. However although quite versatile and useful because of their compact size and thus limited power output the majority of portable speakers out there simply can't cover a large area and so they are not really ideal for people looking to throw a "party" with their friends. The solution to that is rather simple so you can either choose to pair two or more portable speakers to cover a larger/wider area (not many models support pairing but the number continuously increases) or if there's an electrical socket nearby and you want plenty of power you can get your hands on one of the larger "portable" active speakers like the JAD38-B (EL815820) by E-Lektron.
E-Lektron started its business in 2007, its target to offer DJ & PA electronics online at competitive prices and with premium service. At that time regular suppliers were not so keen on their products being offered online so E-Lektron started developing their own products, starting with speakers and amplifiers. Our products are being manufactured by contract-manufacturers with E-Lektron’s high standards and are shipped to our customers in the EU with DHL from our warehouse in Paderborn, Germany. Our prices are competitive since there's no “middle man” and our products are covered by a 2-year warranty (after which we can still repair them in our own workshop thanks to our large stock of spare parts, also for older products).
E-Lektron JAD38-B Digital Sound System Review