Woot offers Sennheiser CX Plus True Wireless Bluetooth Earbuds - for Music and Calls with Active Noise Cancellation, Customizable Touch Controls, IPX4 and 24-hour for $54.99 (orig. $179.99). Free shipping for Prime Members.

Product Description:
True wireless sound that exceeds all expectations: With Sennheiser’s TrueResponse Transducer and Active Noise Cancellation for distraction free listening enjoyment, the Sennheiser CX Plus True Wireless guarantees exceptional sound anywhere, every day. Its smart features make life and listening effortless. Transparent Hearing lets you focus on external sounds when desired, while customizable touchpads ensure effortless control of audio, calls and voice assistant access. The CX Plus True Wireless has been designed for all day use, with a sleek ergonomic design for fatigue-free all day wearing and up to 24 hours playback with on the go charging. Thanks to IPX4 rated splash resistance you can keep on enjoying the CX Plus True Wireless wherever you go. 

• Superior sound, no compromise, powered by Sennheiser’s TrueResponse transducer, personalized with the built-in equalizer and Bass Boost.Note : If the size of the earbud tips does not match the size of your ear canals or the headset is not worn properly in your ears, you may not obtain the correct sound qualities or call performance. Change the earbud tips to ones that fit more snugly in your ears.Specific uses for product : Travel,Sports and Exercise
• Product Note : If the size of the earbud tips does not match the size of your ear canals or the headset is not worn properly in your ears, you may not obtain the correct sound qualities or call performance. Change the earbud tips to ones that fit more snugly in your ears
• Active Noise Cancellation and Transparent Hearing to block out noise or gain awareness of external sounds at a touch in any environment.
• Customizable Touch Controls for music and voice assistant to match individual preference for intuitive operation, along with independent earbud use.
• IPX4 splash resistance for trouble-free use while travelling, commuting or exercising.
• Compact, ergonomic design with 4 ear adapter sizes to ensure optimal comfort and a secure fit for anyone.
• Up to 24 hours play time - the 8-hour battery life that can be extended on-the-go up to an additional 16 hours with the charging case.