Sennheiser True Wireless Sport Earphones - Bluetooth In-Ear Earphones for Active Lifestyle, Music and Calling with Adaptable Acoustic, Noise Reduction and 27 Hour Battery

QUALITY SOUND WITHOUT COMPROMISE: Thanks to Sennheiser's TrueResponse transducer, customized with the built-in EQ and wide range of Bluetooth codec support (AAC, aptX, SBC)
ADAPTABLE ACOUSTIC - Open ear adapters to hear ambient sounds and stay aware of the world around and closed ear adapters for passive noise reduction to block distractions to focus on training
SECURE CUSTOMIZED SUPPORT: The compact, ergonomic interchangeable ear tips as well as various ear adapters provide optimal comfort and a secure fit
IP54 DUST, SPLASH & SWEAT: Enjoy a remarkable audio experience wherever you are, no matter what boundaries are pushed
LONG BATTERY LIFE: Up to 27 hours of music playback with on-the-go charging thanks to the high-quality case included with the product
FULLY DIGITAL CONTROLS: Our Smart Control app for iOS/Android allows you to customize the functionality of the headphones for your everyday needs; fully adaptable controls for music, calls, and voice assistant, as well as independent use of the headphones
Charging time: about 1.5 hours for full charge, after 10 minutes charging, 1 hour music playback