Wireless Sports Headphones, Mengo Bumps Bluetooth Sweat-Resistant Wireless Neckband Earphones For Running with Microphone (Bluetooth 4.1 & NFC) Red - Retail Packaging Enjoy crisp, precise wireless sound with the Mengo Bumps Sport edition Includes three different sized ear-buds to ensure comfort for any ear Flexible neckband ensures the headset stays in place throughout any workout, without getting in your way. Bluetooth version 4.1 offers up to 33ft connection range with 5-6 hours of continues playback Features sweat-resistance, ultra-light, on screen battery monitor with built-in microphone