ENGINEERED TO PERFORM: Precision, Japanese engineering and a powerful 8mm driver unit provide rich, detailed sound as you seamlessly switch from listening to music, podcasts or audio books to making and receiving calls. 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 INDUSTRY-LEADING NOISE CANCELLING Panasonic True Wireless earbuds combine feedforward and feedback noise cancelling with analog and digital processing to achieve one of the most advanced noise cancelling true wireless earbuds on the market. Use ambient sound mode to capture external sounds. RELIABLE CONNECTIVITY: Stable left-right independent signaling and our patent-pending antenna design provide a reliable, powerful connection that’s less sensitive to the interference that causes drop-outs and unbalanced sound. EASY TOUCH SENSOR CONTROLS: Dual touch sensor controls on both earbuds allow you to control music playback/pause and volume and track selection, as well as receive, reject or end calls, manage noise-cancelling/ambient sound amplification modes, and connect to voice assistant (Siri, Google Assistant and Amazon Alexa). EXCELLENT CALL QUALITY: Six high-performance MEMS microphones are built in a unique labyrinth cabinet structure that can suppress wind noise. With the added beamforming technology, the S500W enables your voice to come through loud and clear, while background noise is suppressed. Bluetooth Connectivity, IPX4 Water Resistance, Compatible with Amazon Alexa Comfortable and lightweight, includes 5 Earpiece sizes: XS, S, M, L, XL; 1.6ft charging cable Approximate Battery life: 6.5hrs per earbud, plus 13hrs additional with cradle. 15min Quick Charge = 70min playback