Apple's decision to remove the headphone jack from new iPhones last year prompted lots of consumers to switch to wireless headphones, according to a new report on holiday shopping. From a report: Three-quarters of all headphones sold online in December were wireless models, up from 50% a year earlier, according to shopping tracker Slice Intelligence. Apple was the biggest beneficiary of the shift, as both its new AirPods earphones and models from its Beats subsidiary led the sales charts. The $159 AirPods, Apple's first wireless model sold under its own brand, didn't go on sale until Dec. 13, but the product quickly dominated the wireless headphone market, Slice found. In the year prior to the debut, the Beats brand topped online sales of wireless models with a 24% market share, trailed by Bose with an 11% share and Jaybird at 8%. But after AirPods went on sale, they grabbed 26% of online wireless sales, Slice found. Bose was second at 16% and Beats dropped to third with 15% of the market during the period considered.