German Headphone Maker Grell Launches Its 1st True Wireless Design

German headphone company Grell introduced its first true wireless headphones, which went on preorder Wednesday, with November shipping. The $199 TWS/1 earbuds feature Sonarworks' SoundID personalized audio technology, custom 10mm dynamic drivers and 28-hour battery life with active noise cancellation turned on, said the company. The headphones' Bluetooth range is given as 164 feet.