Philips In-ear True Wireless Headphones - BlackIs there anything more useful than true wireless headphones with a charging case that fits in the pocket of your slim fit jeans? These splash and sweat resistant in ear headphones give you great sound and up to 18 hours play time. Features: Built in mic with echo cancellation for clear audio No more of those annoying echoes when you are talking on the phone. With our acoustic echo cancellation, you always get a clear, undisturbed connection. IPX4