Red Fox Wireless EDGE IPX4 Bluetooth Wireless Headphone (Blue) Lightweight and comfortable Wireless Bluetooth Headphones with ultra high quality sound, clarity and power. Built-in microphone and single button call-answering feature with SIRI and Google voice integration. Provides easy-to-use controls like play/pause and track forward/backward that fit in perfectly with your active lifestyle. Certified IPX4 nano coating for sweat and moisture protection. Includes custom EVA case for protective storage. Guaranteed to never fall out while working out, running, cycling, hiking, sport activities and working in office. Headphone runs on rechargeable lithium-ion battery providing up to 9 hours of continuous use.