EXFIT BCS-S1000 Wireless Bluetooth Headphones, Surround Sound External Speakers, Retractable Earbuds, Siri and Google Assistant Compatible, 25 Hour Battery (Black) Review February 27, 2019 - Squidol 25 Hour Play Time – 7.5 Hour in External Speaker Mode 4-Way External Speaker with Powerful Bass and Vibration Power Dynamic 12mm Speaker Drivers Sweat & Splash Resistant iPx4 HD Voice for Crystal Clear Calls