IPX7 waterproof construction technically means this headphones could be submerged in the water as deep as 3 feet for up to 30 minutes without any functional damage</br>Waterproof technique protects this headphones from water damage. It provides a great enjoy of music for pool party beach hangout rainy days or sunny days great for day to day use in the kitchen or shower. But not good for swimming because Bluetooth signal could not be transmitted underwater whatever any other Bluetooth devices being totally submerged in the water</br>Bluetooth 4.1 offers a more energy efficient connection fast pair with your Bluetooth enabled devices</br>Expert audio tech brings a nice boost in clarity and dynamic stereo call your friends or colleagues using the built-in microphone</br>Long battery life allows the headphones to play up to 6 hours of continuous music at a time or 160 hours of standby time</br></br>Product Description</br></br><br><b>Stable Signal </b><br> Bluetooth 4.1 technology provides GREATER ENERGY EFFICIENCY and less delay transmit data at high speed and bring you smooth music experience. <br> <br><b>Comfortable Neck-Behind Design</b><br> Neck-Behind wearing style provides a comfortable fit prevents troublesome wires from tangling and provides a natural feel through all-day wearing. <br> <br><b>Always in Place</b><br> Whereas other headphones may slip out during physical activity?? the ergonomically shaped ear hooks ensure your headphones stay comfortably firm in place?? provide a great listening experience without ever leaving your ears. <br> <br><b>Hands-free Calling</b><br> The built-in microphone transmits your voice with high quality?? so family and friends can hear every word without trouble. <br> <br><b>IPX7 Waterproof </b><br> IPX7 level water-proof materials of this headphones prevent it from water damage?? is perfect for pool party?? beach hangout?? rainy days or sunny days?? also is great for day to day use in the kitchen or shower. <b>NOTE: In order to ensure better music experience?? please do not swim with this Bluetooth headphones as Bluetooth signal could not be transmitted underwater?? what