Headphone True Wireless Stereo REMAX TWS-17. Remax TWS-17 powered by wireless 5.0 low-power chip and came with main-secondary earbud free switching. The Medical silicone ear clip makes sure of painless on-ear wearing. Three true batteries on the LED display with touch-control sensing. A 1200mAh large-capacity battery support emergency charging for your phone as well.