Durable Tritan Material | Impact And Shatter Resistant | Smooth Rubberized Finish | Screw On, Spill-Resistant Lid | Wireless Earbuds In Lid | Wide Mouth Opening | Meets FDA Requirements | BPA Free | Spot Clean Lid | Features High Definition Bluetooth® 4.1 Wireless Technology And Built-In Microphone | Simply Pair Your Handheld Device To Enjoy Dynamic Stereo Sound Or Receive Hands-Free Calls | Interchangeable Earbud Covers | Earbuds Include 55 mAh Battery | Pairs From Up To 30 Feet Away | Up To 3 Hours Of Play Time | Store Earbuds In Lid™s Magnetic Charging Cradle | LED Indicator Lights | Features A USB Output And Micro USB Input (Cord Included) | Works With Most Smart Phones And Audio Devices | The Bluetooth® word mark and logos are registered trademarks owned by the Bluetooth SIG, Inc. and any use of such marks by Hit Promotional Products®, Inc. is under license. Other trademarks and trade names are those of their respective owners.