The Denon AH-C820W is the world’s first Bluetooth headphones in neckband style equipped with Denon’s exclusive Double Air Compression Driver technology. Based on the prototype of the very popular AH-C820 in-ear earphones, the promising Bluetooth version will still deliver powerful bass and high detail. The product is now officially sold for $220. The AH-C820W features Denon’s proprietary Denon Double Air …
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